20555892

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{271}}^1$

素因数の和:338

約数の個数: 108

約数和(自身を含む): 62078016

約数和(自身を除く): 41522124

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 43, 49, 63, 84, 86, 98, 126, 129, 147, 172, 196, 252, 258, 271, 294, 301, 387, 441, 516, 542, 588, 602, 774, 813, 882, 903, 1084, 1204, 1548, 1626, 1764, 1806, 1897, 2107, 2439, 2709, 3252, 3612, 3794, 4214, 4878, 5418, 5691, 6321, 7588, 8428, 9756, 10836, 11382, 11653, 12642, 13279, 17073, 18963, 22764, 23306, 25284, 26558, 34146, 34959, 37926, 39837, 46612, 53116, 68292, 69918, 75852, 79674, 81571, 104877, 119511, 139836, 159348, 163142, 209754, 239022, 244713, 326284, 419508, 478044, 489426, 570997, 734139, 978852, 1141994, 1468278, 1712991, 2283988, 2936556, 3425982, 5138973, 6851964, 10277946, 20555892]

約数ペア:

[(1, 20555892), (2, 10277946), (3, 6851964), (4, 5138973), (6, 3425982), (7, 2936556), (9, 2283988), (12, 1712991), (14, 1468278), (18, 1141994), (21, 978852), (28, 734139), (36, 570997), (42, 489426), (43, 478044), (49, 419508), (63, 326284), (84, 244713), (86, 239022), (98, 209754), (126, 163142), (129, 159348), (147, 139836), (172, 119511), (196, 104877), (252, 81571), (258, 79674), (271, 75852), (294, 69918), (301, 68292), (387, 53116), (441, 46612), (516, 39837), (542, 37926), (588, 34959), (602, 34146), (774, 26558), (813, 25284), (882, 23306), (903, 22764), (1084, 18963), (1204, 17073), (1548, 13279), (1626, 12642), (1764, 11653), (1806, 11382), (1897, 10836), (2107, 9756), (2439, 8428), (2709, 7588), (3252, 6321), (3612, 5691), (3794, 5418), (4214, 4878)]