20701304

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6421}}^1$

素因数の和:6471

約数の個数: 32

約数和(自身を含む): 43155840

約数和(自身を除く): 22454536

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 6421, 12842, 25684, 51368, 83473, 166946, 199051, 333892, 398102, 667784, 796204, 1592408, 2587663, 5175326, 10350652, 20701304]

約数ペア:

[(1, 20701304), (2, 10350652), (4, 5175326), (8, 2587663), (13, 1592408), (26, 796204), (31, 667784), (52, 398102), (62, 333892), (104, 199051), (124, 166946), (248, 83473), (403, 51368), (806, 25684), (1612, 12842), (3224, 6421)]