21155692

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{1367}}^1$

素因数の和:1497

約数の個数: 24

約数和(自身を含む): 38265696

約数和(自身を除く): 17110004

約数列:

[1, 2, 4, 53, 73, 106, 146, 212, 292, 1367, 2734, 3869, 5468, 7738, 15476, 72451, 99791, 144902, 199582, 289804, 399164, 5288923, 10577846, 21155692]

約数ペア:

[(1, 21155692), (2, 10577846), (4, 5288923), (53, 399164), (73, 289804), (106, 199582), (146, 144902), (212, 99791), (292, 72451), (1367, 15476), (2734, 7738), (3869, 5468)]