21916360

素因数分解:

$2^3\times 5^1\times {\mathrm{547909}}^1$

素因数の和:547920

約数の個数: 16

約数和(自身を含む): 49311900

約数和(自身を除く): 27395540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 547909, 1095818, 2191636, 2739545, 4383272, 5479090, 10958180, 21916360]

約数ペア:

[(1, 21916360), (2, 10958180), (4, 5479090), (5, 4383272), (8, 2739545), (10, 2191636), (20, 1095818), (40, 547909)]