20578408046

素因数分解:

$2^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{487}}^1\times {\mathrm{22031}}^1$

素因数の和:22664

約数の個数: 32

約数和(自身を含む): 35609352192

約数和(自身を除く): 15030944146

約数列:

[1, 2, 7, 14, 137, 274, 487, 959, 974, 1918, 3409, 6818, 22031, 44062, 66719, 133438, 154217, 308434, 467033, 934066, 3018247, 6036494, 10729097, 21127729, 21458194, 42255458, 75103679, 150207358, 1469886289, 2939772578, 10289204023, 20578408046]

約数ペア:

[(1, 20578408046), (2, 10289204023), (7, 2939772578), (14, 1469886289), (137, 150207358), (274, 75103679), (487, 42255458), (959, 21458194), (974, 21127729), (1918, 10729097), (3409, 6036494), (6818, 3018247), (22031, 934066), (44062, 467033), (66719, 308434), (133438, 154217)]