21163654

素因数分解:

$2^1\times {\mathrm{43}}^2\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:244

約数の個数: 24

約数和(自身を含む): 33392520

約数和(自身を除く): 12228866

約数列:

[1, 2, 43, 59, 86, 97, 118, 194, 1849, 2537, 3698, 4171, 5074, 5723, 8342, 11446, 109091, 179353, 218182, 246089, 358706, 492178, 10581827, 21163654]

約数ペア:

[(1, 21163654), (2, 10581827), (43, 492178), (59, 358706), (86, 246089), (97, 218182), (118, 179353), (194, 109091), (1849, 11446), (2537, 8342), (3698, 5723), (4171, 5074)]