21931040

素因数分解:

$2^5\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1213}}^1$

素因数の和:1341

約数の個数: 48

約数和(自身を含む): 52313688

約数和(自身を除く): 30382648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 113, 160, 226, 452, 565, 904, 1130, 1213, 1808, 2260, 2426, 3616, 4520, 4852, 6065, 9040, 9704, 12130, 18080, 19408, 24260, 38816, 48520, 97040, 137069, 194080, 274138, 548276, 685345, 1096552, 1370690, 2193104, 2741380, 4386208, 5482760, 10965520, 21931040]

約数ペア:

[(1, 21931040), (2, 10965520), (4, 5482760), (5, 4386208), (8, 2741380), (10, 2193104), (16, 1370690), (20, 1096552), (32, 685345), (40, 548276), (80, 274138), (113, 194080), (160, 137069), (226, 97040), (452, 48520), (565, 38816), (904, 24260), (1130, 19408), (1213, 18080), (1808, 12130), (2260, 9704), (2426, 9040), (3616, 6065), (4520, 4852)]