21489199

素因数分解:

${\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:366

約数の個数: 16

約数和(自身を含む): 23242752

約数和(自身を除く): 1753553

約数列:

[1, 23, 47, 103, 193, 1081, 2369, 4439, 4841, 9071, 19879, 111343, 208633, 457217, 934313, 21489199]

約数ペア:

[(1, 21489199), (23, 934313), (47, 457217), (103, 208633), (193, 111343), (1081, 19879), (2369, 9071), (4439, 4841)]