1291278651

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{449}}^1\times {\mathrm{1993}}^1$

素因数の和:2495

約数の個数: 32

約数和(自身を含む): 1909454400

約数和(自身を除く): 618175749

約数列:

[1, 3, 13, 37, 39, 111, 449, 481, 1347, 1443, 1993, 5837, 5979, 16613, 17511, 25909, 49839, 73741, 77727, 215969, 221223, 647907, 894857, 958633, 2684571, 2875899, 11633141, 33109709, 34899423, 99329127, 430426217, 1291278651]

約数ペア:

[(1, 1291278651), (3, 430426217), (13, 99329127), (37, 34899423), (39, 33109709), (111, 11633141), (449, 2875899), (481, 2684571), (1347, 958633), (1443, 894857), (1993, 647907), (5837, 221223), (5979, 215969), (16613, 77727), (17511, 73741), (25909, 49839)]