21498078

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{511859}}^1$

素因数の和:511871

約数の個数: 16

約数和(自身を含む): 49138560

約数和(自身を除く): 27640482

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 511859, 1023718, 1535577, 3071154, 3583013, 7166026, 10749039, 21498078]

約数ペア:

[(1, 21498078), (2, 10749039), (3, 7166026), (6, 3583013), (7, 3071154), (14, 1535577), (21, 1023718), (42, 511859)]