20879648

素因数分解:

$2^5\times {\mathrm{163}}^1\times {\mathrm{4003}}^1$

素因数の和:4176

約数の個数: 24

約数和(自身を含む): 41369328

約数和(自身を除く): 20489680

約数列:

[1, 2, 4, 8, 16, 32, 163, 326, 652, 1304, 2608, 4003, 5216, 8006, 16012, 32024, 64048, 128096, 652489, 1304978, 2609956, 5219912, 10439824, 20879648]

約数ペア:

[(1, 20879648), (2, 10439824), (4, 5219912), (8, 2609956), (16, 1304978), (32, 652489), (163, 128096), (326, 64048), (652, 32024), (1304, 16012), (2608, 8006), (4003, 5216)]