21073481860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{925087}}^1$

素因数の和:925180

約数の個数: 48

約数和(自身を含む): 47556923904

約数和(自身を除く): 26483442044

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 67, 68, 85, 134, 170, 268, 335, 340, 670, 1139, 1340, 2278, 4556, 5695, 11390, 22780, 925087, 1850174, 3700348, 4625435, 9250870, 15726479, 18501740, 31452958, 61980829, 62905916, 78632395, 123961658, 157264790, 247923316, 309904145, 314529580, 619808290, 1053674093, 1239616580, 2107348186, 4214696372, 5268370465, 10536740930, 21073481860]

約数ペア:

[(1, 21073481860), (2, 10536740930), (4, 5268370465), (5, 4214696372), (10, 2107348186), (17, 1239616580), (20, 1053674093), (34, 619808290), (67, 314529580), (68, 309904145), (85, 247923316), (134, 157264790), (170, 123961658), (268, 78632395), (335, 62905916), (340, 61980829), (670, 31452958), (1139, 18501740), (1340, 15726479), (2278, 9250870), (4556, 4625435), (5695, 3700348), (11390, 1850174), (22780, 925087)]