18884632

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{503}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 40325040

約数和(自身を除く): 21440408

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 361, 494, 503, 722, 988, 1006, 1444, 1976, 2012, 2888, 4024, 4693, 6539, 9386, 9557, 13078, 18772, 19114, 26156, 37544, 38228, 52312, 76456, 124241, 181583, 248482, 363166, 496964, 726332, 993928, 1452664, 2360579, 4721158, 9442316, 18884632]

約数ペア:

[(1, 18884632), (2, 9442316), (4, 4721158), (8, 2360579), (13, 1452664), (19, 993928), (26, 726332), (38, 496964), (52, 363166), (76, 248482), (104, 181583), (152, 124241), (247, 76456), (361, 52312), (494, 38228), (503, 37544), (722, 26156), (988, 19114), (1006, 18772), (1444, 13078), (1976, 9557), (2012, 9386), (2888, 6539), (4024, 4693)]