19866965

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{6317}}^1$

素因数の和:6376

約数の個数: 16

約数和(自身を含む): 25929072

約数和(自身を除く): 6062107

約数列:

[1, 5, 17, 37, 85, 185, 629, 3145, 6317, 31585, 107389, 233729, 536945, 1168645, 3973393, 19866965]

約数ペア:

[(1, 19866965), (5, 3973393), (17, 1168645), (37, 536945), (85, 233729), (185, 107389), (629, 31585), (3145, 6317)]