9998978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{1259}}^1$

素因数の和:1310

約数の個数: 24

約数和(自身を含む): 17282160

約数和(自身を除く): 7283182

約数列:

[1, 2, 11, 19, 22, 38, 209, 361, 418, 722, 1259, 2518, 3971, 7942, 13849, 23921, 27698, 47842, 263131, 454499, 526262, 908998, 4999489, 9998978]

約数ペア:

[(1, 9998978), (2, 4999489), (11, 908998), (19, 526262), (22, 454499), (38, 263131), (209, 47842), (361, 27698), (418, 23921), (722, 13849), (1259, 7942), (2518, 3971)]