15421.000000

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 695520

約数和(自身を除く): 457140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 137, 145, 174, 274, 290, 348, 411, 435, 548, 580, 685, 822, 870, 1370, 1644, 1740, 2055, 2740, 3973, 4110, 7946, 8220, 11919, 15892, 19865, 23838, 39730, 47676, 59595, 79460, 119190, 238380]

約数ペア:

[(1, 238380), (2, 119190), (3, 79460), (4, 59595), (5, 47676), (6, 39730), (10, 23838), (12, 19865), (15, 15892), (20, 11919), (29, 8220), (30, 7946), (58, 4110), (60, 3973), (87, 2740), (116, 2055), (137, 1740), (145, 1644), (174, 1370), (274, 870), (290, 822), (348, 685), (411, 580), (435, 548)]