20921110

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{6359}}^1$

素因数の和:6420

約数の個数: 32

約数和(自身を含む): 43960320

約数和(自身を除く): 23039210

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 70, 94, 235, 329, 470, 658, 1645, 3290, 6359, 12718, 31795, 44513, 63590, 89026, 222565, 298873, 445130, 597746, 1494365, 2092111, 2988730, 4184222, 10460555, 20921110]

約数ペア:

[(1, 20921110), (2, 10460555), (5, 4184222), (7, 2988730), (10, 2092111), (14, 1494365), (35, 597746), (47, 445130), (70, 298873), (94, 222565), (235, 89026), (329, 63590), (470, 44513), (658, 31795), (1645, 12718), (3290, 6359)]