19291792

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{677}}^1$

素因数の和:835

約数の個数: 40

約数和(自身を含む): 40606776

約数和(自身を除く): 21314984

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 137, 208, 274, 548, 677, 1096, 1354, 1781, 2192, 2708, 3562, 5416, 7124, 8801, 10832, 14248, 17602, 28496, 35204, 70408, 92749, 140816, 185498, 370996, 741992, 1205737, 1483984, 2411474, 4822948, 9645896, 19291792]

約数ペア:

[(1, 19291792), (2, 9645896), (4, 4822948), (8, 2411474), (13, 1483984), (16, 1205737), (26, 741992), (52, 370996), (104, 185498), (137, 140816), (208, 92749), (274, 70408), (548, 35204), (677, 28496), (1096, 17602), (1354, 14248), (1781, 10832), (2192, 8801), (2708, 7124), (3562, 5416)]