21208170

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{797}}^1\times {\mathrm{887}}^1$

素因数の和:1694

約数の個数: 32

約数和(自身を含む): 51020928

約数和(自身を除く): 29812758

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 797, 887, 1594, 1774, 2391, 2661, 3985, 4435, 4782, 5322, 7970, 8870, 11955, 13305, 23910, 26610, 706939, 1413878, 2120817, 3534695, 4241634, 7069390, 10604085, 21208170]

約数ペア:

[(1, 21208170), (2, 10604085), (3, 7069390), (5, 4241634), (6, 3534695), (10, 2120817), (15, 1413878), (30, 706939), (797, 26610), (887, 23910), (1594, 13305), (1774, 11955), (2391, 8870), (2661, 7970), (3985, 5322), (4435, 4782)]