21721384

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{118051}}^1$

素因数の和:118080

約数の個数: 16

約数和(自身を含む): 42498720

約数和(自身を除く): 20777336

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 118051, 236102, 472204, 944408, 2715173, 5430346, 10860692, 21721384]

約数ペア:

[(1, 21721384), (2, 10860692), (4, 5430346), (8, 2715173), (23, 944408), (46, 472204), (92, 236102), (184, 118051)]