20669552

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{75991}}^1$

素因数の和:76016

約数の個数: 20

約数和(自身を含む): 42403536

約数和(自身を除く): 21733984

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 75991, 151982, 303964, 607928, 1215856, 1291847, 2583694, 5167388, 10334776, 20669552]

約数ペア:

[(1, 20669552), (2, 10334776), (4, 5167388), (8, 2583694), (16, 1291847), (17, 1215856), (34, 607928), (68, 303964), (136, 151982), (272, 75991)]