20870161918

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{7237}}^1\times {\mathrm{21521}}^1$

素因数の和:28827

約数の個数: 16

約数和(自身を含む): 31778352144

約数和(自身を除く): 10908190226

約数列:

[1, 2, 67, 134, 7237, 14474, 21521, 43042, 484879, 969758, 1441907, 2883814, 155747477, 311494954, 10435080959, 20870161918]

約数ペア:

[(1, 20870161918), (2, 10435080959), (67, 311494954), (134, 155747477), (7237, 2883814), (14474, 1441907), (21521, 969758), (43042, 484879)]