20845578

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{233}}^1$

素因数の和:319

約数の個数: 64

約数和(自身を含む): 47803392

約数和(自身を除く): 26957814

約数列:

[1, 2, 3, 6, 13, 26, 31, 37, 39, 62, 74, 78, 93, 111, 186, 222, 233, 403, 466, 481, 699, 806, 962, 1147, 1209, 1398, 1443, 2294, 2418, 2886, 3029, 3441, 6058, 6882, 7223, 8621, 9087, 14446, 14911, 17242, 18174, 21669, 25863, 29822, 43338, 44733, 51726, 89466, 93899, 112073, 187798, 224146, 267251, 281697, 336219, 534502, 563394, 672438, 801753, 1603506, 3474263, 6948526, 10422789, 20845578]

約数ペア:

[(1, 20845578), (2, 10422789), (3, 6948526), (6, 3474263), (13, 1603506), (26, 801753), (31, 672438), (37, 563394), (39, 534502), (62, 336219), (74, 281697), (78, 267251), (93, 224146), (111, 187798), (186, 112073), (222, 93899), (233, 89466), (403, 51726), (466, 44733), (481, 43338), (699, 29822), (806, 25863), (962, 21669), (1147, 18174), (1209, 17242), (1398, 14911), (1443, 14446), (2294, 9087), (2418, 8621), (2886, 7223), (3029, 6882), (3441, 6058)]