251657757

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{953}}^1$

素因数の和:1070

約数の個数: 48

約数和(自身を含む): 409067568

約数和(自身を除く): 157409811

約数列:

[1, 3, 9, 13, 37, 39, 61, 111, 117, 183, 333, 481, 549, 793, 953, 1443, 2257, 2379, 2859, 4329, 6771, 7137, 8577, 12389, 20313, 29341, 35261, 37167, 58133, 88023, 105783, 111501, 174399, 264069, 317349, 458393, 523197, 755729, 1375179, 2150921, 2267187, 4125537, 6452763, 6801561, 19358289, 27961973, 83885919, 251657757]

約数ペア:

[(1, 251657757), (3, 83885919), (9, 27961973), (13, 19358289), (37, 6801561), (39, 6452763), (61, 4125537), (111, 2267187), (117, 2150921), (183, 1375179), (333, 755729), (481, 523197), (549, 458393), (793, 317349), (953, 264069), (1443, 174399), (2257, 111501), (2379, 105783), (2859, 88023), (4329, 58133), (6771, 37167), (7137, 35261), (8577, 29341), (12389, 20313)]