90131991

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:383

約数の個数: 32

約数和(自身を含む): 129888000

約数和(自身を除く): 39756009

約数列:

[1, 3, 19, 57, 89, 109, 163, 267, 327, 489, 1691, 2071, 3097, 5073, 6213, 9291, 9701, 14507, 17767, 29103, 43521, 53301, 184319, 275633, 337573, 552957, 826899, 1012719, 1581263, 4743789, 30043997, 90131991]

約数ペア:

[(1, 90131991), (3, 30043997), (19, 4743789), (57, 1581263), (89, 1012719), (109, 826899), (163, 552957), (267, 337573), (327, 275633), (489, 184319), (1691, 53301), (2071, 43521), (3097, 29103), (5073, 17767), (6213, 14507), (9291, 9701)]