21121856

素因数分解:

$2^6\times 7^1\times {\mathrm{47147}}^1$

素因数の和:47166

約数の個数: 28

約数和(自身を含む): 47902368

約数和(自身を除く): 26780512

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 224, 448, 47147, 94294, 188588, 330029, 377176, 660058, 754352, 1320116, 1508704, 2640232, 3017408, 5280464, 10560928, 21121856]

約数ペア:

[(1, 21121856), (2, 10560928), (4, 5280464), (7, 3017408), (8, 2640232), (14, 1508704), (16, 1320116), (28, 754352), (32, 660058), (56, 377176), (64, 330029), (112, 188588), (224, 94294), (448, 47147)]