20921962

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{6367}}^1$

素因数の和:6453

約数の個数: 16

約数和(自身を含む): 33011712

約数和(自身を除く): 12089750

約数列:

[1, 2, 31, 53, 62, 106, 1643, 3286, 6367, 12734, 197377, 337451, 394754, 674902, 10460981, 20921962]

約数ペア:

[(1, 20921962), (2, 10460981), (31, 674902), (53, 394754), (62, 337451), (106, 197377), (1643, 12734), (3286, 6367)]