21370291240

素因数分解:

$2^3\times 5^1\times {\mathrm{10151}}^1\times {\mathrm{52631}}^1$

素因数の和:62793

約数の個数: 32

約数和(自身を含む): 48088805760

約数和(自身を除く): 26718514520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 10151, 20302, 40604, 50755, 52631, 81208, 101510, 105262, 203020, 210524, 263155, 406040, 421048, 526310, 1052620, 2105240, 534257281, 1068514562, 2137029124, 2671286405, 4274058248, 5342572810, 10685145620, 21370291240]

約数ペア:

[(1, 21370291240), (2, 10685145620), (4, 5342572810), (5, 4274058248), (8, 2671286405), (10, 2137029124), (20, 1068514562), (40, 534257281), (10151, 2105240), (20302, 1052620), (40604, 526310), (50755, 421048), (52631, 406040), (81208, 263155), (101510, 210524), (105262, 203020)]