21817862

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{31991}}^1$

素因数の和:32035

約数の個数: 16

約数和(自身を含む): 36854784

約数和(自身を除く): 15036922

約数列:

[1, 2, 11, 22, 31, 62, 341, 682, 31991, 63982, 351901, 703802, 991721, 1983442, 10908931, 21817862]

約数ペア:

[(1, 21817862), (2, 10908931), (11, 1983442), (22, 991721), (31, 703802), (62, 351901), (341, 63982), (682, 31991)]