21874541

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{491}}^1$

素因数の和:676

約数の個数: 16

約数和(自身を含む): 24796800

約数和(自身を除く): 2922259

約数列:

[1, 13, 23, 149, 299, 491, 1937, 3427, 6383, 11293, 44551, 73159, 146809, 951067, 1682657, 21874541]

約数ペア:

[(1, 21874541), (13, 1682657), (23, 951067), (149, 146809), (299, 73159), (491, 44551), (1937, 11293), (3427, 6383)]