21190830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16427}}^1$

素因数の和:16480

約数の個数: 32

約数和(自身を含む): 52043904

約数和(自身を除く): 30853074

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 16427, 32854, 49281, 82135, 98562, 164270, 246405, 492810, 706361, 1412722, 2119083, 3531805, 4238166, 7063610, 10595415, 21190830]

約数ペア:

[(1, 21190830), (2, 10595415), (3, 7063610), (5, 4238166), (6, 3531805), (10, 2119083), (15, 1412722), (30, 706361), (43, 492810), (86, 246405), (129, 164270), (215, 98562), (258, 82135), (430, 49281), (645, 32854), (1290, 16427)]