18897776

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{7523}}^1$

素因数の和:7688

約数の個数: 20

約数和(自身を含む): 36852552

約数和(自身を除く): 17954776

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 7523, 15046, 30092, 60184, 120368, 1181111, 2362222, 4724444, 9448888, 18897776]

約数ペア:

[(1, 18897776), (2, 9448888), (4, 4724444), (8, 2362222), (16, 1181111), (157, 120368), (314, 60184), (628, 30092), (1256, 15046), (2512, 7523)]