18939718

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{449}}^1$

素因数の和:612

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 15274682

約数列:

[1, 2, 7, 14, 23, 46, 131, 161, 262, 322, 449, 898, 917, 1834, 3013, 3143, 6026, 6286, 10327, 20654, 21091, 42182, 58819, 72289, 117638, 144578, 411733, 823466, 1352837, 2705674, 9469859, 18939718]

約数ペア:

[(1, 18939718), (2, 9469859), (7, 2705674), (14, 1352837), (23, 823466), (46, 411733), (131, 144578), (161, 117638), (262, 72289), (322, 58819), (449, 42182), (898, 21091), (917, 20654), (1834, 10327), (3013, 6286), (3143, 6026)]