19739005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1453}}^1$

素因数の和:1501

約数の個数: 32

約数和(自身を含む): 29312640

約数和(自身を除く): 9573635

約数列:

[1, 5, 11, 13, 19, 55, 65, 95, 143, 209, 247, 715, 1045, 1235, 1453, 2717, 7265, 13585, 15983, 18889, 27607, 79915, 94445, 138035, 207779, 303677, 358891, 1038895, 1518385, 1794455, 3947801, 19739005]

約数ペア:

[(1, 19739005), (5, 3947801), (11, 1794455), (13, 1518385), (19, 1038895), (55, 358891), (65, 303677), (95, 207779), (143, 138035), (209, 94445), (247, 79915), (715, 27607), (1045, 18889), (1235, 15983), (1453, 13585), (2717, 7265)]