21279370

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{13217}}^1$

素因数の和:13254

約数の個数: 32

約数和(自身を含む): 45681408

約数和(自身を除く): 24402038

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 322, 805, 1610, 13217, 26434, 66085, 92519, 132170, 185038, 303991, 462595, 607982, 925190, 1519955, 2127937, 3039910, 4255874, 10639685, 21279370]

約数ペア:

[(1, 21279370), (2, 10639685), (5, 4255874), (7, 3039910), (10, 2127937), (14, 1519955), (23, 925190), (35, 607982), (46, 462595), (70, 303991), (115, 185038), (161, 132170), (230, 92519), (322, 66085), (805, 26434), (1610, 13217)]