19810908

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{42331}}^1$

素因数の和:42354

約数の個数: 36

約数和(自身を含む): 53930968

約数和(自身を除く): 34120060

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 42331, 84662, 126993, 169324, 253986, 380979, 507972, 550303, 761958, 1100606, 1523916, 1650909, 2201212, 3301818, 4952727, 6603636, 9905454, 19810908]

約数ペア:

[(1, 19810908), (2, 9905454), (3, 6603636), (4, 4952727), (6, 3301818), (9, 2201212), (12, 1650909), (13, 1523916), (18, 1100606), (26, 761958), (36, 550303), (39, 507972), (52, 380979), (78, 253986), (117, 169324), (156, 126993), (234, 84662), (468, 42331)]