20171777493

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1\times {\mathrm{1621}}^1$

素因数の和:1918

約数の個数: 64

約数和(自身を含む): 32045529600

約数和(自身を除く): 11873752107

約数列:

[1, 3, 7, 21, 41, 97, 123, 149, 287, 291, 447, 679, 861, 1043, 1621, 2037, 3129, 3977, 4863, 6109, 11347, 11931, 14453, 18327, 27839, 34041, 42763, 43359, 66461, 83517, 101171, 128289, 157237, 199383, 241529, 303513, 465227, 471711, 592573, 724587, 1100659, 1395681, 1690703, 1777719, 3301977, 4148011, 5072109, 6446717, 9902689, 12444033, 19340151, 23428313, 29708067, 45127019, 69318823, 70284939, 135381057, 163998191, 207956469, 491994573, 960560833, 2881682499, 6723925831, 20171777493]

約数ペア:

[(1, 20171777493), (3, 6723925831), (7, 2881682499), (21, 960560833), (41, 491994573), (97, 207956469), (123, 163998191), (149, 135381057), (287, 70284939), (291, 69318823), (447, 45127019), (679, 29708067), (861, 23428313), (1043, 19340151), (1621, 12444033), (2037, 9902689), (3129, 6446717), (3977, 5072109), (4863, 4148011), (6109, 3301977), (11347, 1777719), (11931, 1690703), (14453, 1395681), (18327, 1100659), (27839, 724587), (34041, 592573), (42763, 471711), (43359, 465227), (66461, 303513), (83517, 241529), (101171, 199383), (128289, 157237)]