18213213

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 26460160

約数和(自身を除く): 8246947

約数列:

[1, 3, 31, 37, 67, 79, 93, 111, 201, 237, 1147, 2077, 2449, 2479, 2923, 3441, 5293, 6231, 7347, 7437, 8769, 15879, 76849, 90613, 164083, 195841, 230547, 271839, 492249, 587523, 6071071, 18213213]

約数ペア:

[(1, 18213213), (3, 6071071), (31, 587523), (37, 492249), (67, 271839), (79, 230547), (93, 195841), (111, 164083), (201, 90613), (237, 76849), (1147, 15879), (2077, 8769), (2449, 7437), (2479, 7347), (2923, 6231), (3441, 5293)]