21485286

素因数分解:

$2^1\times 3^2\times {\mathrm{211}}^1\times {\mathrm{5657}}^1$

素因数の和:5876

約数の個数: 24

約数和(自身を含む): 46780344

約数和(自身を除く): 25295058

約数列:

[1, 2, 3, 6, 9, 18, 211, 422, 633, 1266, 1899, 3798, 5657, 11314, 16971, 33942, 50913, 101826, 1193627, 2387254, 3580881, 7161762, 10742643, 21485286]

約数ペア:

[(1, 21485286), (2, 10742643), (3, 7161762), (6, 3580881), (9, 2387254), (18, 1193627), (211, 101826), (422, 50913), (633, 33942), (1266, 16971), (1899, 11314), (3798, 5657)]