491170081898

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1\times {\mathrm{20164631}}^1$

素因数の和:20165293

約数の個数: 16

約数和(自身を含む): 776741624640

約数和(自身を除く): 285571542742

約数列:

[1, 2, 19, 38, 641, 1282, 12179, 24358, 20164631, 40329262, 383127989, 766255978, 12925528471, 25851056942, 245585040949, 491170081898]

約数ペア:

[(1, 491170081898), (2, 245585040949), (19, 25851056942), (38, 12925528471), (641, 766255978), (1282, 383127989), (12179, 40329262), (24358, 20164631)]