21385252

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{44927}}^1$

素因数の和:44955

約数の個数: 24

約数和(自身を含む): 45287424

約数和(自身を除く): 23902172

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 44927, 89854, 179708, 314489, 628978, 763759, 1257956, 1527518, 3055036, 5346313, 10692626, 21385252]

約数ペア:

[(1, 21385252), (2, 10692626), (4, 5346313), (7, 3055036), (14, 1527518), (17, 1257956), (28, 763759), (34, 628978), (68, 314489), (119, 179708), (238, 89854), (476, 44927)]