20993872

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{12739}}^1$

素因数の和:12850

約数の個数: 20

約数和(自身を含む): 41073760

約数和(自身を除く): 20079888

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 12739, 25478, 50956, 101912, 203824, 1312117, 2624234, 5248468, 10496936, 20993872]

約数ペア:

[(1, 20993872), (2, 10496936), (4, 5248468), (8, 2624234), (16, 1312117), (103, 203824), (206, 101912), (412, 50956), (824, 25478), (1648, 12739)]