21270916

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{193}}^1\times {\mathrm{467}}^1$

素因数の和:723

約数の個数: 24

約数和(自身を含む): 38132640

約数和(自身を除く): 16861724

約数列:

[1, 2, 4, 59, 118, 193, 236, 386, 467, 772, 934, 1868, 11387, 22774, 27553, 45548, 55106, 90131, 110212, 180262, 360524, 5317729, 10635458, 21270916]

約数ペア:

[(1, 21270916), (2, 10635458), (4, 5317729), (59, 360524), (118, 180262), (193, 110212), (236, 90131), (386, 55106), (467, 45548), (772, 27553), (934, 22774), (1868, 11387)]