19897066

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{571}}^1$

素因数の和:730

約数の個数: 32

約数和(自身を含む): 36241920

約数和(自身を除く): 16344854

約数列:

[1, 2, 7, 14, 19, 38, 131, 133, 262, 266, 571, 917, 1142, 1834, 2489, 3997, 4978, 7994, 10849, 17423, 21698, 34846, 74801, 75943, 149602, 151886, 523607, 1047214, 1421219, 2842438, 9948533, 19897066]

約数ペア:

[(1, 19897066), (2, 9948533), (7, 2842438), (14, 1421219), (19, 1047214), (38, 523607), (131, 151886), (133, 149602), (262, 75943), (266, 74801), (571, 34846), (917, 21698), (1142, 17423), (1834, 10849), (2489, 7994), (3997, 4978)]