21000480760

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{10714531}}^1$

素因数の和:10714556

約数の個数: 48

約数和(自身を含む): 54965549160

約数和(自身を除く): 33965068400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 10714531, 21429062, 42858124, 53572655, 75001717, 85716248, 107145310, 150003434, 214290620, 300006868, 375008585, 428581240, 525012019, 600013736, 750017170, 1050024038, 1500034340, 2100048076, 2625060095, 3000068680, 4200096152, 5250120190, 10500240380, 21000480760]

約数ペア:

[(1, 21000480760), (2, 10500240380), (4, 5250120190), (5, 4200096152), (7, 3000068680), (8, 2625060095), (10, 2100048076), (14, 1500034340), (20, 1050024038), (28, 750017170), (35, 600013736), (40, 525012019), (49, 428581240), (56, 375008585), (70, 300006868), (98, 214290620), (140, 150003434), (196, 107145310), (245, 85716248), (280, 75001717), (392, 53572655), (490, 42858124), (980, 21429062), (1960, 10714531)]