20999572

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{12899}}^1$

素因数の和:12951

約数の個数: 24

約数和(自身を含む): 41176800

約数和(自身を除く): 20177228

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628, 12899, 25798, 51596, 141889, 283778, 477263, 567556, 954526, 1909052, 5249893, 10499786, 20999572]

約数ペア:

[(1, 20999572), (2, 10499786), (4, 5249893), (11, 1909052), (22, 954526), (37, 567556), (44, 477263), (74, 283778), (148, 141889), (407, 51596), (814, 25798), (1628, 12899)]