19861173

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1$

素因数の和:490

約数の個数: 32

約数和(自身を含む): 30950400

約数和(自身を除く): 11089227

約数列:

[1, 3, 9, 27, 31, 61, 93, 183, 279, 389, 549, 837, 1167, 1647, 1891, 3501, 5673, 10503, 12059, 17019, 23729, 36177, 51057, 71187, 108531, 213561, 325593, 640683, 735599, 2206797, 6620391, 19861173]

約数ペア:

[(1, 19861173), (3, 6620391), (9, 2206797), (27, 735599), (31, 640683), (61, 325593), (93, 213561), (183, 108531), (279, 71187), (389, 51057), (549, 36177), (837, 23729), (1167, 17019), (1647, 12059), (1891, 10503), (3501, 5673)]