21443640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{178697}}^1$

素因数の和:178711

約数の個数: 32

約数和(自身を含む): 64331280

約数和(自身を除く): 42887640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 178697, 357394, 536091, 714788, 893485, 1072182, 1429576, 1786970, 2144364, 2680455, 3573940, 4288728, 5360910, 7147880, 10721820, 21443640]

約数ペア:

[(1, 21443640), (2, 10721820), (3, 7147880), (4, 5360910), (5, 4288728), (6, 3573940), (8, 2680455), (10, 2144364), (12, 1786970), (15, 1429576), (20, 1072182), (24, 893485), (30, 714788), (40, 536091), (60, 357394), (120, 178697)]