19830016

素因数分解:

$2^8\times {\mathrm{71}}^1\times {\mathrm{1091}}^1$

素因数の和:1178

約数の個数: 36

約数和(自身を含む): 40176864

約数和(自身を除く): 20346848

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 128, 142, 256, 284, 568, 1091, 1136, 2182, 2272, 4364, 4544, 8728, 9088, 17456, 18176, 34912, 69824, 77461, 139648, 154922, 279296, 309844, 619688, 1239376, 2478752, 4957504, 9915008, 19830016]

約数ペア:

[(1, 19830016), (2, 9915008), (4, 4957504), (8, 2478752), (16, 1239376), (32, 619688), (64, 309844), (71, 279296), (128, 154922), (142, 139648), (256, 77461), (284, 69824), (568, 34912), (1091, 18176), (1136, 17456), (2182, 9088), (2272, 8728), (4364, 4544)]