19939072

素因数分解:

$2^8\times {\mathrm{71}}^1\times {\mathrm{1097}}^1$

素因数の和:1184

約数の個数: 36

約数和(自身を含む): 40397616

約数和(自身を除く): 20458544

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 128, 142, 256, 284, 568, 1097, 1136, 2194, 2272, 4388, 4544, 8776, 9088, 17552, 18176, 35104, 70208, 77887, 140416, 155774, 280832, 311548, 623096, 1246192, 2492384, 4984768, 9969536, 19939072]

約数ペア:

[(1, 19939072), (2, 9969536), (4, 4984768), (8, 2492384), (16, 1246192), (32, 623096), (64, 311548), (71, 280832), (128, 155774), (142, 140416), (256, 77887), (284, 70208), (568, 35104), (1097, 18176), (1136, 17552), (2194, 9088), (2272, 8776), (4388, 4544)]