18663632

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1693}}^1$

素因数の和:1767

約数の個数: 40

約数和(自身を含む): 39700584

約数和(自身を除く): 21036952

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 53, 104, 106, 208, 212, 424, 689, 848, 1378, 1693, 2756, 3386, 5512, 6772, 11024, 13544, 22009, 27088, 44018, 88036, 89729, 176072, 179458, 352144, 358916, 717832, 1166477, 1435664, 2332954, 4665908, 9331816, 18663632]

約数ペア:

[(1, 18663632), (2, 9331816), (4, 4665908), (8, 2332954), (13, 1435664), (16, 1166477), (26, 717832), (52, 358916), (53, 352144), (104, 179458), (106, 176072), (208, 89729), (212, 88036), (424, 44018), (689, 27088), (848, 22009), (1378, 13544), (1693, 11024), (2756, 6772), (3386, 5512)]