20971728

素因数分解:

$2^4\times 3^2\times {\mathrm{145637}}^1$

素因数の和:145651

約数の個数: 30

約数和(自身を含む): 58692114

約数和(自身を除く): 37720386

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 145637, 291274, 436911, 582548, 873822, 1165096, 1310733, 1747644, 2330192, 2621466, 3495288, 5242932, 6990576, 10485864, 20971728]

約数ペア:

[(1, 20971728), (2, 10485864), (3, 6990576), (4, 5242932), (6, 3495288), (8, 2621466), (9, 2330192), (12, 1747644), (16, 1310733), (18, 1165096), (24, 873822), (36, 582548), (48, 436911), (72, 291274), (144, 145637)]