19856996

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{2411}}^1$

素因数の和:2515

約数の個数: 24

約数和(自身を含む): 36469440

約数和(自身を除く): 16612444

約数列:

[1, 2, 4, 29, 58, 71, 116, 142, 284, 2059, 2411, 4118, 4822, 8236, 9644, 69919, 139838, 171181, 279676, 342362, 684724, 4964249, 9928498, 19856996]

約数ペア:

[(1, 19856996), (2, 9928498), (4, 4964249), (29, 684724), (58, 342362), (71, 279676), (116, 171181), (142, 139838), (284, 69919), (2059, 9644), (2411, 8236), (4118, 4822)]