21955456

素因数分解:

$2^7\times {\mathrm{43}}^1\times {\mathrm{3989}}^1$

素因数の和:4046

約数の個数: 32

約数和(自身を含む): 44767800

約数和(自身を除く): 22812344

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 344, 688, 1376, 2752, 3989, 5504, 7978, 15956, 31912, 63824, 127648, 171527, 255296, 343054, 510592, 686108, 1372216, 2744432, 5488864, 10977728, 21955456]

約数ペア:

[(1, 21955456), (2, 10977728), (4, 5488864), (8, 2744432), (16, 1372216), (32, 686108), (43, 510592), (64, 343054), (86, 255296), (128, 171527), (172, 127648), (344, 63824), (688, 31912), (1376, 15956), (2752, 7978), (3989, 5504)]