21044080

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11437}}^1$

素因数の和:11473

約数の個数: 40

約数和(自身を含む): 51059232

約数和(自身を除く): 30015152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 11437, 22874, 45748, 57185, 91496, 114370, 182992, 228740, 263051, 457480, 526102, 914960, 1052204, 1315255, 2104408, 2630510, 4208816, 5261020, 10522040, 21044080]

約数ペア:

[(1, 21044080), (2, 10522040), (4, 5261020), (5, 4208816), (8, 2630510), (10, 2104408), (16, 1315255), (20, 1052204), (23, 914960), (40, 526102), (46, 457480), (80, 263051), (92, 228740), (115, 182992), (184, 114370), (230, 91496), (368, 57185), (460, 45748), (920, 22874), (1840, 11437)]