21215966

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{20129}}^1$

素因数の和:20179

約数の個数: 16

約数和(自身を含む): 34784640

約数和(自身を除く): 13568674

約数列:

[1, 2, 17, 31, 34, 62, 527, 1054, 20129, 40258, 342193, 623999, 684386, 1247998, 10607983, 21215966]

約数ペア:

[(1, 21215966), (2, 10607983), (17, 1247998), (31, 684386), (34, 623999), (62, 342193), (527, 40258), (1054, 20129)]