21057804

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{18869}}^1$

素因数の和:18910

約数の個数: 36

約数和(自身を含む): 54949440

約数和(自身を除く): 33891636

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 186, 279, 372, 558, 1116, 18869, 37738, 56607, 75476, 113214, 169821, 226428, 339642, 584939, 679284, 1169878, 1754817, 2339756, 3509634, 5264451, 7019268, 10528902, 21057804]

約数ペア:

[(1, 21057804), (2, 10528902), (3, 7019268), (4, 5264451), (6, 3509634), (9, 2339756), (12, 1754817), (18, 1169878), (31, 679284), (36, 584939), (62, 339642), (93, 226428), (124, 169821), (186, 113214), (279, 75476), (372, 56607), (558, 37738), (1116, 18869)]