19969714

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1\times {\mathrm{641}}^1$

素因数の和:1101

約数の個数: 16

約数和(自身を含む): 30885336

約数和(自身を除く): 10915622

約数列:

[1, 2, 37, 74, 421, 641, 842, 1282, 15577, 23717, 31154, 47434, 269861, 539722, 9984857, 19969714]

約数ペア:

[(1, 19969714), (2, 9984857), (37, 539722), (74, 269861), (421, 47434), (641, 31154), (842, 23717), (1282, 15577)]