21273456

素因数分解:

$2^4\times 3^1\times {\mathrm{163}}^1\times {\mathrm{2719}}^1$

素因数の和:2893

約数の個数: 40

約数和(自身を含む): 55313920

約数和(自身を除く): 34040464

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 163, 326, 489, 652, 978, 1304, 1956, 2608, 2719, 3912, 5438, 7824, 8157, 10876, 16314, 21752, 32628, 43504, 65256, 130512, 443197, 886394, 1329591, 1772788, 2659182, 3545576, 5318364, 7091152, 10636728, 21273456]

約数ペア:

[(1, 21273456), (2, 10636728), (3, 7091152), (4, 5318364), (6, 3545576), (8, 2659182), (12, 1772788), (16, 1329591), (24, 886394), (48, 443197), (163, 130512), (326, 65256), (489, 43504), (652, 32628), (978, 21752), (1304, 16314), (1956, 10876), (2608, 8157), (2719, 7824), (3912, 5438)]