20709054

素因数分解:

$2^1\times 3^3\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:270

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 27674946

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 89, 93, 139, 178, 186, 267, 278, 279, 417, 534, 558, 801, 834, 837, 1251, 1602, 1674, 2403, 2502, 2759, 3753, 4309, 4806, 5518, 7506, 8277, 8618, 12371, 12927, 16554, 24742, 24831, 25854, 37113, 38781, 49662, 74226, 74493, 77562, 111339, 116343, 148986, 222678, 232686, 334017, 383501, 668034, 767002, 1150503, 2301006, 3451509, 6903018, 10354527, 20709054]

約数ペア:

[(1, 20709054), (2, 10354527), (3, 6903018), (6, 3451509), (9, 2301006), (18, 1150503), (27, 767002), (31, 668034), (54, 383501), (62, 334017), (89, 232686), (93, 222678), (139, 148986), (178, 116343), (186, 111339), (267, 77562), (278, 74493), (279, 74226), (417, 49662), (534, 38781), (558, 37113), (801, 25854), (834, 24831), (837, 24742), (1251, 16554), (1602, 12927), (1674, 12371), (2403, 8618), (2502, 8277), (2759, 7506), (3753, 5518), (4309, 4806)]