21285870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41737}}^1$

素因数の和:41764

約数の個数: 32

約数和(自身を含む): 54092448

約数和(自身を除く): 32806578

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 510, 41737, 83474, 125211, 208685, 250422, 417370, 626055, 709529, 1252110, 1419058, 2128587, 3547645, 4257174, 7095290, 10642935, 21285870]

約数ペア:

[(1, 21285870), (2, 10642935), (3, 7095290), (5, 4257174), (6, 3547645), (10, 2128587), (15, 1419058), (17, 1252110), (30, 709529), (34, 626055), (51, 417370), (85, 250422), (102, 208685), (170, 125211), (255, 83474), (510, 41737)]