18974511

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1447}}^1$

素因数の和:1531

約数の個数: 24

約数和(自身を含む): 28913664

約数和(自身を除く): 9939153

約数列:

[1, 3, 9, 31, 47, 93, 141, 279, 423, 1447, 1457, 4341, 4371, 13023, 13113, 44857, 68009, 134571, 204027, 403713, 612081, 2108279, 6324837, 18974511]

約数ペア:

[(1, 18974511), (3, 6324837), (9, 2108279), (31, 612081), (47, 403713), (93, 204027), (141, 134571), (279, 68009), (423, 44857), (1447, 13113), (1457, 13023), (4341, 4371)]