21553923

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{6199}}^1$

素因数の和:6282

約数の個数: 16

約数和(自身を含む): 30752000

約数和(自身を除く): 9198077

約数列:

[1, 3, 19, 57, 61, 183, 1159, 3477, 6199, 18597, 117781, 353343, 378139, 1134417, 7184641, 21553923]

約数ペア:

[(1, 21553923), (3, 7184641), (19, 1134417), (57, 378139), (61, 353343), (183, 117781), (1159, 18597), (3477, 6199)]