408778881

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{4021}}^1$

素因数の和:4181

約数の個数: 32

約数和(自身を含む): 642490368

約数和(自身を除く): 233711487

約数列:

[1, 3, 7, 21, 47, 103, 141, 309, 329, 721, 987, 2163, 4021, 4841, 12063, 14523, 28147, 33887, 84441, 101661, 188987, 414163, 566961, 1242489, 1322909, 2899141, 3968727, 8697423, 19465661, 58396983, 136259627, 408778881]

約数ペア:

[(1, 408778881), (3, 136259627), (7, 58396983), (21, 19465661), (47, 8697423), (103, 3968727), (141, 2899141), (309, 1322909), (329, 1242489), (721, 566961), (987, 414163), (2163, 188987), (4021, 101661), (4841, 84441), (12063, 33887), (14523, 28147)]