20649798

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1$

素因数の和:246

約数の個数: 96

約数和(自身を含む): 53071200

約数和(自身を除く): 32421402

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 29, 34, 39, 51, 58, 78, 87, 102, 117, 153, 174, 179, 221, 234, 261, 306, 358, 377, 442, 493, 522, 537, 663, 754, 986, 1074, 1131, 1326, 1479, 1611, 1989, 2262, 2327, 2958, 3043, 3222, 3393, 3978, 4437, 4654, 5191, 6086, 6409, 6786, 6981, 8874, 9129, 10382, 12818, 13962, 15573, 18258, 19227, 20943, 27387, 31146, 38454, 39559, 41886, 46719, 54774, 57681, 67483, 79118, 88247, 93438, 115362, 118677, 134966, 176494, 202449, 237354, 264741, 356031, 404898, 529482, 607347, 712062, 794223, 1147211, 1214694, 1588446, 2294422, 3441633, 6883266, 10324899, 20649798]

約数ペア:

[(1, 20649798), (2, 10324899), (3, 6883266), (6, 3441633), (9, 2294422), (13, 1588446), (17, 1214694), (18, 1147211), (26, 794223), (29, 712062), (34, 607347), (39, 529482), (51, 404898), (58, 356031), (78, 264741), (87, 237354), (102, 202449), (117, 176494), (153, 134966), (174, 118677), (179, 115362), (221, 93438), (234, 88247), (261, 79118), (306, 67483), (358, 57681), (377, 54774), (442, 46719), (493, 41886), (522, 39559), (537, 38454), (663, 31146), (754, 27387), (986, 20943), (1074, 19227), (1131, 18258), (1326, 15573), (1479, 13962), (1611, 12818), (1989, 10382), (2262, 9129), (2327, 8874), (2958, 6981), (3043, 6786), (3222, 6409), (3393, 6086), (3978, 5191), (4437, 4654)]