19810116

素因数分解:

$2^2\times 3^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:202

約数の個数: 96

約数和(自身を含む): 54440960

約数和(自身を除く): 34630844

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 31, 36, 54, 61, 62, 93, 97, 108, 122, 124, 183, 186, 194, 244, 279, 291, 366, 372, 388, 549, 558, 582, 732, 837, 873, 1098, 1116, 1164, 1647, 1674, 1746, 1891, 2196, 2619, 3007, 3294, 3348, 3492, 3782, 5238, 5673, 5917, 6014, 6588, 7564, 9021, 10476, 11346, 11834, 12028, 17019, 17751, 18042, 22692, 23668, 27063, 34038, 35502, 36084, 51057, 53253, 54126, 68076, 71004, 81189, 102114, 106506, 108252, 159759, 162378, 183427, 204228, 213012, 319518, 324756, 366854, 550281, 639036, 733708, 1100562, 1650843, 2201124, 3301686, 4952529, 6603372, 9905058, 19810116]

約数ペア:

[(1, 19810116), (2, 9905058), (3, 6603372), (4, 4952529), (6, 3301686), (9, 2201124), (12, 1650843), (18, 1100562), (27, 733708), (31, 639036), (36, 550281), (54, 366854), (61, 324756), (62, 319518), (93, 213012), (97, 204228), (108, 183427), (122, 162378), (124, 159759), (183, 108252), (186, 106506), (194, 102114), (244, 81189), (279, 71004), (291, 68076), (366, 54126), (372, 53253), (388, 51057), (549, 36084), (558, 35502), (582, 34038), (732, 27063), (837, 23668), (873, 22692), (1098, 18042), (1116, 17751), (1164, 17019), (1647, 12028), (1674, 11834), (1746, 11346), (1891, 10476), (2196, 9021), (2619, 7564), (3007, 6588), (3294, 6014), (3348, 5917), (3492, 5673), (3782, 5238)]