21267080

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{27983}}^1$

素因数の和:28013

約数の個数: 32

約数和(自身を含む): 50371200

約数和(自身を除く): 29104120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 27983, 55966, 111932, 139915, 223864, 279830, 531677, 559660, 1063354, 1119320, 2126708, 2658385, 4253416, 5316770, 10633540, 21267080]

約数ペア:

[(1, 21267080), (2, 10633540), (4, 5316770), (5, 4253416), (8, 2658385), (10, 2126708), (19, 1119320), (20, 1063354), (38, 559660), (40, 531677), (76, 279830), (95, 223864), (152, 139915), (190, 111932), (380, 55966), (760, 27983)]