21550400

素因数分解:

$2^6\times 5^2\times {\mathrm{13469}}^1$

素因数の和:13491

約数の個数: 42

約数和(自身を含む): 53031390

約数和(自身を除く): 31480990

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 13469, 26938, 53876, 67345, 107752, 134690, 215504, 269380, 336725, 431008, 538760, 673450, 862016, 1077520, 1346900, 2155040, 2693800, 4310080, 5387600, 10775200, 21550400]

約数ペア:

[(1, 21550400), (2, 10775200), (4, 5387600), (5, 4310080), (8, 2693800), (10, 2155040), (16, 1346900), (20, 1077520), (25, 862016), (32, 673450), (40, 538760), (50, 431008), (64, 336725), (80, 269380), (100, 215504), (160, 134690), (200, 107752), (320, 67345), (400, 53876), (800, 26938), (1600, 13469)]