20921714

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{30677}}^1$

素因数の和:30721

約数の個数: 16

約数和(自身を含む): 35341056

約数和(自身を除く): 14419342

約数列:

[1, 2, 11, 22, 31, 62, 341, 682, 30677, 61354, 337447, 674894, 950987, 1901974, 10460857, 20921714]

約数ペア:

[(1, 20921714), (2, 10460857), (11, 1901974), (22, 950987), (31, 674894), (62, 337447), (341, 61354), (682, 30677)]