19907264

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{337}}^1$

素因数の和:433

約数の個数: 56

約数和(自身を含む): 43269408

約数和(自身を除く): 23362144

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 71, 104, 142, 208, 284, 337, 416, 568, 674, 832, 923, 1136, 1348, 1846, 2272, 2696, 3692, 4381, 4544, 5392, 7384, 8762, 10784, 14768, 17524, 21568, 23927, 29536, 35048, 47854, 59072, 70096, 95708, 140192, 191416, 280384, 311051, 382832, 622102, 765664, 1244204, 1531328, 2488408, 4976816, 9953632, 19907264]

約数ペア:

[(1, 19907264), (2, 9953632), (4, 4976816), (8, 2488408), (13, 1531328), (16, 1244204), (26, 765664), (32, 622102), (52, 382832), (64, 311051), (71, 280384), (104, 191416), (142, 140192), (208, 95708), (284, 70096), (337, 59072), (416, 47854), (568, 35048), (674, 29536), (832, 23927), (923, 21568), (1136, 17524), (1348, 14768), (1846, 10784), (2272, 8762), (2696, 7384), (3692, 5392), (4381, 4544)]