21134720

素因数分解:

$2^7\times 5^1\times {\mathrm{33023}}^1$

素因数の和:33042

約数の個数: 32

約数和(自身を含む): 50526720

約数和(自身を除く): 29392000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 33023, 66046, 132092, 165115, 264184, 330230, 528368, 660460, 1056736, 1320920, 2113472, 2641840, 4226944, 5283680, 10567360, 21134720]

約数ペア:

[(1, 21134720), (2, 10567360), (4, 5283680), (5, 4226944), (8, 2641840), (10, 2113472), (16, 1320920), (20, 1056736), (32, 660460), (40, 528368), (64, 330230), (80, 264184), (128, 165115), (160, 132092), (320, 66046), (640, 33023)]