21521018

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{283}}^1\times {\mathrm{809}}^1$

素因数の和:1141

約数の個数: 16

約数和(自身を含む): 33125760

約数和(自身を除く): 11604742

約数列:

[1, 2, 47, 94, 283, 566, 809, 1618, 13301, 26602, 38023, 76046, 228947, 457894, 10760509, 21521018]

約数ペア:

[(1, 21521018), (2, 10760509), (47, 457894), (94, 228947), (283, 76046), (566, 38023), (809, 26602), (1618, 13301)]