18131421

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{11213}}^1$

素因数の和:11241

約数の個数: 24

約数和(自身を含む): 30681504

約数和(自身を除く): 12550083

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 11213, 33639, 78491, 123343, 235473, 370029, 549437, 863401, 1648311, 2590203, 6043807, 18131421]

約数ペア:

[(1, 18131421), (3, 6043807), (7, 2590203), (11, 1648311), (21, 863401), (33, 549437), (49, 370029), (77, 235473), (147, 123343), (231, 78491), (539, 33639), (1617, 11213)]