21306847

素因数分解:

${\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{229}}^1$

素因数の和:390

約数の個数: 16

約数和(自身を含む): 23184000

約数和(自身を除く): 1877153

約数列:

[1, 19, 59, 83, 229, 1121, 1577, 4351, 4897, 13511, 19007, 93043, 256709, 361133, 1121413, 21306847]

約数ペア:

[(1, 21306847), (19, 1121413), (59, 361133), (83, 256709), (229, 93043), (1121, 19007), (1577, 13511), (4351, 4897)]