21278450

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{18503}}^1$

素因数の和:18538

約数の個数: 24

約数和(自身を含む): 41300928

約数和(自身を除く): 20022478

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 115, 230, 575, 1150, 18503, 37006, 92515, 185030, 425569, 462575, 851138, 925150, 2127845, 4255690, 10639225, 21278450]

約数ペア:

[(1, 21278450), (2, 10639225), (5, 4255690), (10, 2127845), (23, 925150), (25, 851138), (46, 462575), (50, 425569), (115, 185030), (230, 92515), (575, 37006), (1150, 18503)]