21000570647

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{2713}}^1\times {\mathrm{48079}}^1$

素因数の和:50822

約数の個数: 16

約数和(自身を含む): 25053911040

約数和(自身を除く): 4053340393

約数列:

[1, 7, 23, 161, 2713, 18991, 48079, 62399, 336553, 436793, 1105817, 7740719, 130438327, 913068289, 3000081521, 21000570647]

約数ペア:

[(1, 21000570647), (7, 3000081521), (23, 913068289), (161, 130438327), (2713, 7740719), (18991, 1105817), (48079, 436793), (62399, 336553)]