21727240

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{3001}}^1$

素因数の和:3193

約数の個数: 32

約数和(自身を含む): 49172760

約数和(自身を除く): 27445520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3001, 3620, 6002, 7240, 12004, 15005, 24008, 30010, 60020, 120040, 543181, 1086362, 2172724, 2715905, 4345448, 5431810, 10863620, 21727240]

約数ペア:

[(1, 21727240), (2, 10863620), (4, 5431810), (5, 4345448), (8, 2715905), (10, 2172724), (20, 1086362), (40, 543181), (181, 120040), (362, 60020), (724, 30010), (905, 24008), (1448, 15005), (1810, 12004), (3001, 7240), (3620, 6002)]