191426991

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{997}}^1$

素因数の和:1271

約数の個数: 32

約数和(自身を含む): 300453888

約数和(自身を除く): 109026897

約数列:

[1, 3, 7, 21, 41, 123, 223, 287, 669, 861, 997, 1561, 2991, 4683, 6979, 9143, 20937, 27429, 40877, 64001, 122631, 192003, 222331, 286139, 666993, 858417, 1556317, 4668951, 9115571, 27346713, 63808997, 191426991]

約数ペア:

[(1, 191426991), (3, 63808997), (7, 27346713), (21, 9115571), (41, 4668951), (123, 1556317), (223, 858417), (287, 666993), (669, 286139), (861, 222331), (997, 192003), (1561, 122631), (2991, 64001), (4683, 40877), (6979, 27429), (9143, 20937)]