18947998

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{2381}}^1$

素因数の和:2579

約数の個数: 16

約数和(自身を含む): 29841696

約数和(自身を除く): 10893698

約数列:

[1, 2, 23, 46, 173, 346, 2381, 3979, 4762, 7958, 54763, 109526, 411913, 823826, 9473999, 18947998]

約数ペア:

[(1, 18947998), (2, 9473999), (23, 823826), (46, 411913), (173, 109526), (346, 54763), (2381, 7958), (3979, 4762)]