61720309

素因数分解:

$7^1\times {\mathrm{139}}^1\times {\mathrm{229}}^1\times {\mathrm{277}}^1$

素因数の和:652

約数の個数: 16

約数和(自身を含む): 71612800

約数和(自身を除く): 9892491

約数列:

[1, 7, 139, 229, 277, 973, 1603, 1939, 31831, 38503, 63433, 222817, 269521, 444031, 8817187, 61720309]

約数ペア:

[(1, 61720309), (7, 8817187), (139, 444031), (229, 269521), (277, 222817), (973, 63433), (1603, 38503), (1939, 31831)]