21412131

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{157}}^1\times {\mathrm{269}}^1$

素因数の和:455

約数の個数: 24

約数和(自身を含む): 31227120

約数和(自身を除く): 9814989

約数列:

[1, 3, 13, 39, 157, 169, 269, 471, 507, 807, 2041, 3497, 6123, 10491, 26533, 42233, 45461, 79599, 126699, 136383, 549029, 1647087, 7137377, 21412131]

約数ペア:

[(1, 21412131), (3, 7137377), (13, 1647087), (39, 549029), (157, 136383), (169, 126699), (269, 79599), (471, 45461), (507, 42233), (807, 26533), (2041, 10491), (3497, 6123)]