21094750990

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{232091}}^1$

素因数の和:232308

約数の個数: 32

約数和(自身を含む): 38852200800

約数和(自身を除く): 17757449810

約数列:

[1, 2, 5, 10, 61, 122, 149, 298, 305, 610, 745, 1490, 9089, 18178, 45445, 90890, 232091, 464182, 1160455, 2320910, 14157551, 28315102, 34581559, 69163118, 70787755, 141575510, 172907795, 345815590, 2109475099, 4218950198, 10547375495, 21094750990]

約数ペア:

[(1, 21094750990), (2, 10547375495), (5, 4218950198), (10, 2109475099), (61, 345815590), (122, 172907795), (149, 141575510), (298, 70787755), (305, 69163118), (610, 34581559), (745, 28315102), (1490, 14157551), (9089, 2320910), (18178, 1160455), (45445, 464182), (90890, 232091)]