21776420

素因数分解:

$2^2\times 5^1\times {\mathrm{619}}^1\times {\mathrm{1759}}^1$

素因数の和:2387

約数の個数: 24

約数和(自身を含む): 45830400

約数和(自身を除く): 24053980

約数列:

[1, 2, 4, 5, 10, 20, 619, 1238, 1759, 2476, 3095, 3518, 6190, 7036, 8795, 12380, 17590, 35180, 1088821, 2177642, 4355284, 5444105, 10888210, 21776420]

約数ペア:

[(1, 21776420), (2, 10888210), (4, 5444105), (5, 4355284), (10, 2177642), (20, 1088821), (619, 35180), (1238, 17590), (1759, 12380), (2476, 8795), (3095, 7036), (3518, 6190)]