19642425

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{821}}^1$

素因数の和:874

約数の個数: 48

約数和(自身を含む): 36694080

約数和(自身を除く): 17051655

約数列:

[1, 3, 5, 11, 15, 25, 29, 33, 55, 75, 87, 145, 165, 275, 319, 435, 725, 821, 825, 957, 1595, 2175, 2463, 4105, 4785, 7975, 9031, 12315, 20525, 23809, 23925, 27093, 45155, 61575, 71427, 119045, 135465, 225775, 261899, 357135, 595225, 677325, 785697, 1309495, 1785675, 3928485, 6547475, 19642425]

約数ペア:

[(1, 19642425), (3, 6547475), (5, 3928485), (11, 1785675), (15, 1309495), (25, 785697), (29, 677325), (33, 595225), (55, 357135), (75, 261899), (87, 225775), (145, 135465), (165, 119045), (275, 71427), (319, 61575), (435, 45155), (725, 27093), (821, 23925), (825, 23809), (957, 20525), (1595, 12315), (2175, 9031), (2463, 7975), (4105, 4785)]