20193350499

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{1801}}^1$

素因数の和:1898

約数の個数: 144

約数和(自身を含む): 38557321920

約数和(自身を除く): 18363971421

約数列:

[1, 3, 7, 9, 17, 19, 21, 29, 51, 57, 63, 87, 119, 133, 153, 171, 203, 261, 323, 357, 361, 399, 493, 551, 609, 969, 1071, 1083, 1197, 1479, 1653, 1801, 1827, 2261, 2527, 2907, 3249, 3451, 3857, 4437, 4959, 5403, 6137, 6783, 7581, 9367, 10353, 10469, 11571, 12607, 16209, 18411, 20349, 22743, 28101, 30617, 31059, 31407, 34219, 34713, 37821, 42959, 52229, 55233, 65569, 73283, 84303, 91851, 94221, 102657, 113463, 128877, 156687, 177973, 196707, 214319, 219849, 239533, 275553, 307971, 365603, 386631, 470061, 533919, 581723, 590121, 642957, 650161, 659547, 718599, 887893, 992351, 1096809, 1245811, 1601757, 1745169, 1928871, 1950483, 2155797, 2663679, 2977053, 3290427, 3737433, 4072061, 4551127, 5235507, 5851449, 6215251, 6946457, 7991037, 8931159, 11052737, 11212299, 12216183, 13653381, 16869967, 18645753, 18854669, 20839371, 33158211, 36648549, 40960143, 50609901, 55937259, 56564007, 62518113, 77369159, 99474633, 118089769, 131982683, 151829703, 169692021, 232107477, 320529373, 354269307, 395948049, 696322431, 961588119, 1062807921, 1187844147, 2243705611, 2884764357, 6731116833, 20193350499]

約数ペア:

[(1, 20193350499), (3, 6731116833), (7, 2884764357), (9, 2243705611), (17, 1187844147), (19, 1062807921), (21, 961588119), (29, 696322431), (51, 395948049), (57, 354269307), (63, 320529373), (87, 232107477), (119, 169692021), (133, 151829703), (153, 131982683), (171, 118089769), (203, 99474633), (261, 77369159), (323, 62518113), (357, 56564007), (361, 55937259), (399, 50609901), (493, 40960143), (551, 36648549), (609, 33158211), (969, 20839371), (1071, 18854669), (1083, 18645753), (1197, 16869967), (1479, 13653381), (1653, 12216183), (1801, 11212299), (1827, 11052737), (2261, 8931159), (2527, 7991037), (2907, 6946457), (3249, 6215251), (3451, 5851449), (3857, 5235507), (4437, 4551127), (4959, 4072061), (5403, 3737433), (6137, 3290427), (6783, 2977053), (7581, 2663679), (9367, 2155797), (10353, 1950483), (10469, 1928871), (11571, 1745169), (12607, 1601757), (16209, 1245811), (18411, 1096809), (20349, 992351), (22743, 887893), (28101, 718599), (30617, 659547), (31059, 650161), (31407, 642957), (34219, 590121), (34713, 581723), (37821, 533919), (42959, 470061), (52229, 386631), (55233, 365603), (65569, 307971), (73283, 275553), (84303, 239533), (91851, 219849), (94221, 214319), (102657, 196707), (113463, 177973), (128877, 156687)]