19200005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{11261}}^1$

素因数の和:11308

約数の個数: 16

約数和(自身を含む): 25947648

約数和(自身を除く): 6747643

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 11261, 56305, 123871, 349091, 619355, 1745455, 3840001, 19200005]

約数ペア:

[(1, 19200005), (5, 3840001), (11, 1745455), (31, 619355), (55, 349091), (155, 123871), (341, 56305), (1705, 11261)]