18665654721

素因数分解:

$3^1\times 7^2\times {\mathrm{797}}^1\times {\mathrm{159319}}^1$

素因数の和:160133

約数の個数: 24

約数和(自身を含む): 28987318080

約数和(自身を除く): 10321663359

約数列:

[1, 3, 7, 21, 49, 147, 797, 2391, 5579, 16737, 39053, 117159, 159319, 477957, 1115233, 3345699, 7806631, 23419893, 126977243, 380931729, 888840701, 2666522103, 6221884907, 18665654721]

約数ペア:

[(1, 18665654721), (3, 6221884907), (7, 2666522103), (21, 888840701), (49, 380931729), (147, 126977243), (797, 23419893), (2391, 7806631), (5579, 3345699), (16737, 1115233), (39053, 477957), (117159, 159319)]