18857878779

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{142271}}^1$

素因数の和:142427

約数の個数: 32

約数和(自身を含む): 28026445824

約数和(自身を除く): 9168567045

約数列:

[1, 3, 17, 23, 51, 69, 113, 339, 391, 1173, 1921, 2599, 5763, 7797, 44183, 132549, 142271, 426813, 2418607, 3272233, 7255821, 9816699, 16076623, 48229869, 55627961, 166883883, 273302591, 369762329, 819907773, 1109286987, 6285959593, 18857878779]

約数ペア:

[(1, 18857878779), (3, 6285959593), (17, 1109286987), (23, 819907773), (51, 369762329), (69, 273302591), (113, 166883883), (339, 55627961), (391, 48229869), (1173, 16076623), (1921, 9816699), (2599, 7255821), (5763, 3272233), (7797, 2418607), (44183, 426813), (132549, 142271)]