21027040

素因数分解:

$2^5\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1163}}^1$

素因数の和:1291

約数の個数: 48

約数和(自身を含む): 50159088

約数和(自身を除く): 29132048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 113, 160, 226, 452, 565, 904, 1130, 1163, 1808, 2260, 2326, 3616, 4520, 4652, 5815, 9040, 9304, 11630, 18080, 18608, 23260, 37216, 46520, 93040, 131419, 186080, 262838, 525676, 657095, 1051352, 1314190, 2102704, 2628380, 4205408, 5256760, 10513520, 21027040]

約数ペア:

[(1, 21027040), (2, 10513520), (4, 5256760), (5, 4205408), (8, 2628380), (10, 2102704), (16, 1314190), (20, 1051352), (32, 657095), (40, 525676), (80, 262838), (113, 186080), (160, 131419), (226, 93040), (452, 46520), (565, 37216), (904, 23260), (1130, 18608), (1163, 18080), (1808, 11630), (2260, 9304), (2326, 9040), (3616, 5815), (4520, 4652)]