18900665

素因数分解:

$5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{3313}}^1$

素因数の和:3488

約数の個数: 16

約数和(自身を含む): 26087808

約数和(自身を除く): 7187143

約数列:

[1, 5, 7, 35, 163, 815, 1141, 3313, 5705, 16565, 23191, 115955, 540019, 2700095, 3780133, 18900665]

約数ペア:

[(1, 18900665), (5, 3780133), (7, 2700095), (35, 540019), (163, 115955), (815, 23191), (1141, 16565), (3313, 5705)]