19975538

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{5437}}^1$

素因数の和:5617

約数の個数: 16

約数和(自身を含む): 32889024

約数和(自身を除く): 12913486

約数列:

[1, 2, 11, 22, 167, 334, 1837, 3674, 5437, 10874, 59807, 119614, 907979, 1815958, 9987769, 19975538]

約数ペア:

[(1, 19975538), (2, 9987769), (11, 1815958), (22, 907979), (167, 119614), (334, 59807), (1837, 10874), (3674, 5437)]