977773979

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{219281}}^1$

素因数の和:219315

約数の個数: 16

約数和(自身を含む): 1227979200

約数和(自身を除く): 250205221

約数列:

[1, 7, 13, 49, 91, 343, 637, 4459, 219281, 1534967, 2850653, 10744769, 19954571, 75213383, 139681997, 977773979]

約数ペア:

[(1, 977773979), (7, 139681997), (13, 75213383), (49, 19954571), (91, 10744769), (343, 2850653), (637, 1534967), (4459, 219281)]