21353577

素因数分解:

$3^1\times 7^1\times {\mathrm{659}}^1\times {\mathrm{1543}}^1$

素因数の和:2212

約数の個数: 16

約数和(自身を含む): 32609280

約数和(自身を除く): 11255703

約数列:

[1, 3, 7, 21, 659, 1543, 1977, 4613, 4629, 10801, 13839, 32403, 1016837, 3050511, 7117859, 21353577]

約数ペア:

[(1, 21353577), (3, 7117859), (7, 3050511), (21, 1016837), (659, 32403), (1543, 13839), (1977, 10801), (4613, 4629)]