21684054

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{937}}^1$

素因数の和:997

約数の個数: 64

約数和(自身を含む): 54028800

約数和(自身を除く): 32344746

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 29, 38, 42, 57, 58, 87, 114, 133, 174, 203, 266, 399, 406, 551, 609, 798, 937, 1102, 1218, 1653, 1874, 2811, 3306, 3857, 5622, 6559, 7714, 11571, 13118, 17803, 19677, 23142, 27173, 35606, 39354, 53409, 54346, 81519, 106818, 124621, 163038, 190211, 249242, 373863, 380422, 516287, 570633, 747726, 1032574, 1141266, 1548861, 3097722, 3614009, 7228018, 10842027, 21684054]

約数ペア:

[(1, 21684054), (2, 10842027), (3, 7228018), (6, 3614009), (7, 3097722), (14, 1548861), (19, 1141266), (21, 1032574), (29, 747726), (38, 570633), (42, 516287), (57, 380422), (58, 373863), (87, 249242), (114, 190211), (133, 163038), (174, 124621), (203, 106818), (266, 81519), (399, 54346), (406, 53409), (551, 39354), (609, 35606), (798, 27173), (937, 23142), (1102, 19677), (1218, 17803), (1653, 13118), (1874, 11571), (2811, 7714), (3306, 6559), (3857, 5622)]