20688354

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:180

約数の個数: 72

約数和(自身を含む): 49280868

約数和(自身を除く): 28592514

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 41, 51, 82, 97, 102, 123, 153, 194, 246, 289, 291, 306, 369, 578, 582, 697, 738, 867, 873, 1394, 1649, 1734, 1746, 2091, 2601, 3298, 3977, 4182, 4947, 5202, 6273, 7954, 9894, 11849, 11931, 12546, 14841, 23698, 23862, 28033, 29682, 35547, 35793, 56066, 67609, 71094, 71586, 84099, 106641, 135218, 168198, 202827, 213282, 252297, 405654, 504594, 608481, 1149353, 1216962, 2298706, 3448059, 6896118, 10344177, 20688354]

約数ペア:

[(1, 20688354), (2, 10344177), (3, 6896118), (6, 3448059), (9, 2298706), (17, 1216962), (18, 1149353), (34, 608481), (41, 504594), (51, 405654), (82, 252297), (97, 213282), (102, 202827), (123, 168198), (153, 135218), (194, 106641), (246, 84099), (289, 71586), (291, 71094), (306, 67609), (369, 56066), (578, 35793), (582, 35547), (697, 29682), (738, 28033), (867, 23862), (873, 23698), (1394, 14841), (1649, 12546), (1734, 11931), (1746, 11849), (2091, 9894), (2601, 7954), (3298, 6273), (3977, 5202), (4182, 4947)]