20516262117

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{3259}}^1$

素因数の和:3474

約数の個数: 64

約数和(自身を含む): 31406161920

約数和(自身を除く): 10889899803

約数列:

[1, 3, 13, 31, 39, 41, 93, 123, 127, 381, 403, 533, 1209, 1271, 1599, 1651, 3259, 3813, 3937, 4953, 5207, 9777, 11811, 15621, 16523, 42367, 49569, 51181, 67691, 101029, 127101, 133619, 153543, 161417, 203073, 303087, 400857, 413893, 484251, 1241679, 1313377, 1737047, 2098421, 3940131, 4142189, 5211141, 5380609, 6295263, 12426567, 12830683, 16141827, 16969613, 38492049, 50908839, 53848457, 161545371, 166798879, 220604969, 500396637, 526058003, 661814907, 1578174009, 6838754039, 20516262117]

約数ペア:

[(1, 20516262117), (3, 6838754039), (13, 1578174009), (31, 661814907), (39, 526058003), (41, 500396637), (93, 220604969), (123, 166798879), (127, 161545371), (381, 53848457), (403, 50908839), (533, 38492049), (1209, 16969613), (1271, 16141827), (1599, 12830683), (1651, 12426567), (3259, 6295263), (3813, 5380609), (3937, 5211141), (4953, 4142189), (5207, 3940131), (9777, 2098421), (11811, 1737047), (15621, 1313377), (16523, 1241679), (42367, 484251), (49569, 413893), (51181, 400857), (67691, 303087), (101029, 203073), (127101, 161417), (133619, 153543)]