21018266

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{971}}^1$

素因数の和:1189

約数の個数: 16

約数和(自身を含む): 32192640

約数和(自身を除く): 11174374

約数列:

[1, 2, 79, 137, 158, 274, 971, 1942, 10823, 21646, 76709, 133027, 153418, 266054, 10509133, 21018266]

約数ペア:

[(1, 21018266), (2, 10509133), (79, 266054), (137, 153418), (158, 133027), (274, 76709), (971, 21646), (1942, 10823)]