18870621

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{541}}^1$

素因数の和:713

約数の個数: 32

約数和(自身を含む): 31635456

約数和(自身を除く): 12764835

約数列:

[1, 3, 7, 11, 21, 33, 77, 151, 231, 453, 541, 1057, 1623, 1661, 3171, 3787, 4983, 5951, 11361, 11627, 17853, 34881, 41657, 81691, 124971, 245073, 571837, 898601, 1715511, 2695803, 6290207, 18870621]

約数ペア:

[(1, 18870621), (3, 6290207), (7, 2695803), (11, 1715511), (21, 898601), (33, 571837), (77, 245073), (151, 124971), (231, 81691), (453, 41657), (541, 34881), (1057, 17853), (1623, 11627), (1661, 11361), (3171, 5951), (3787, 4983)]