21556736

素因数分解:

$2^9\times {\mathrm{71}}^1\times {\mathrm{593}}^1$

素因数の和:682

約数の個数: 40

約数和(自身を含む): 43751664

約数和(自身を除く): 22194928

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 128, 142, 256, 284, 512, 568, 593, 1136, 1186, 2272, 2372, 4544, 4744, 9088, 9488, 18176, 18976, 36352, 37952, 42103, 75904, 84206, 151808, 168412, 303616, 336824, 673648, 1347296, 2694592, 5389184, 10778368, 21556736]

約数ペア:

[(1, 21556736), (2, 10778368), (4, 5389184), (8, 2694592), (16, 1347296), (32, 673648), (64, 336824), (71, 303616), (128, 168412), (142, 151808), (256, 84206), (284, 75904), (512, 42103), (568, 37952), (593, 36352), (1136, 18976), (1186, 18176), (2272, 9488), (2372, 9088), (4544, 4744)]