20172952784

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{20669009}}^1$

素因数の和:20669078

約数の個数: 20

約数和(自身を含む): 39725837220

約数和(自身を除く): 19552884436

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 20669009, 41338018, 82676036, 165352072, 330704144, 1260809549, 2521619098, 5043238196, 10086476392, 20172952784]

約数ペア:

[(1, 20172952784), (2, 10086476392), (4, 5043238196), (8, 2521619098), (16, 1260809549), (61, 330704144), (122, 165352072), (244, 82676036), (488, 41338018), (976, 20669009)]