20967195

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{331}}^1$

素因数の和:483

約数の個数: 32

約数和(自身を含む): 34804224

約数和(自身を除く): 13837029

約数列:

[1, 3, 5, 15, 41, 103, 123, 205, 309, 331, 515, 615, 993, 1545, 1655, 4223, 4965, 12669, 13571, 21115, 34093, 40713, 63345, 67855, 102279, 170465, 203565, 511395, 1397813, 4193439, 6989065, 20967195]

約数ペア:

[(1, 20967195), (3, 6989065), (5, 4193439), (15, 1397813), (41, 511395), (103, 203565), (123, 170465), (205, 102279), (309, 67855), (331, 63345), (515, 40713), (615, 34093), (993, 21115), (1545, 13571), (1655, 12669), (4223, 4965)]