391485129

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{17977}}^1$

素因数の和:18065

約数の個数: 32

約数和(自身を含む): 642030336

約数和(自身を除く): 250545207

約数列:

[1, 3, 7, 17, 21, 51, 61, 119, 183, 357, 427, 1037, 1281, 3111, 7259, 17977, 21777, 53931, 125839, 305609, 377517, 916827, 1096597, 2139263, 3289791, 6417789, 7676179, 18642149, 23028537, 55926447, 130495043, 391485129]

約数ペア:

[(1, 391485129), (3, 130495043), (7, 55926447), (17, 23028537), (21, 18642149), (51, 7676179), (61, 6417789), (119, 3289791), (183, 2139263), (357, 1096597), (427, 916827), (1037, 377517), (1281, 305609), (3111, 125839), (7259, 53931), (17977, 21777)]