20657029136

素因数分解:

$2^4\times {\mathrm{18413}}^1\times {\mathrm{70117}}^1$

素因数の和:88538

約数の個数: 20

約数和(自身を含む): 40025738412

約数和(自身を除く): 19368709276

約数列:

[1, 2, 4, 8, 16, 18413, 36826, 70117, 73652, 140234, 147304, 280468, 294608, 560936, 1121872, 1291064321, 2582128642, 5164257284, 10328514568, 20657029136]

約数ペア:

[(1, 20657029136), (2, 10328514568), (4, 5164257284), (8, 2582128642), (16, 1291064321), (18413, 1121872), (36826, 560936), (70117, 294608), (73652, 280468), (140234, 147304)]