20739388

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{8243}}^1$

素因数の和:8301

約数の個数: 24

約数和(自身を含む): 39472272

約数和(自身を除く): 18732884

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 148, 629, 1258, 2516, 8243, 16486, 32972, 140131, 280262, 304991, 560524, 609982, 1219964, 5184847, 10369694, 20739388]

約数ペア:

[(1, 20739388), (2, 10369694), (4, 5184847), (17, 1219964), (34, 609982), (37, 560524), (68, 304991), (74, 280262), (148, 140131), (629, 32972), (1258, 16486), (2516, 8243)]