20651878

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{461}}^1\times {\mathrm{1723}}^1$

素因数の和:2199

約数の個数: 16

約数和(自身を含む): 33452496

約数和(自身を除く): 12800618

約数列:

[1, 2, 13, 26, 461, 922, 1723, 3446, 5993, 11986, 22399, 44798, 794303, 1588606, 10325939, 20651878]

約数ペア:

[(1, 20651878), (2, 10325939), (13, 1588606), (26, 794303), (461, 44798), (922, 22399), (1723, 11986), (3446, 5993)]