21124485

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{797}}^1$

素因数の和:858

約数の個数: 48

約数和(自身を含む): 39836160

約数和(自身を除く): 18711675

約数列:

[1, 3, 5, 9, 15, 19, 31, 45, 57, 93, 95, 155, 171, 279, 285, 465, 589, 797, 855, 1395, 1767, 2391, 2945, 3985, 5301, 7173, 8835, 11955, 15143, 24707, 26505, 35865, 45429, 74121, 75715, 123535, 136287, 222363, 227145, 370605, 469433, 681435, 1111815, 1408299, 2347165, 4224897, 7041495, 21124485]

約数ペア:

[(1, 21124485), (3, 7041495), (5, 4224897), (9, 2347165), (15, 1408299), (19, 1111815), (31, 681435), (45, 469433), (57, 370605), (93, 227145), (95, 222363), (155, 136287), (171, 123535), (279, 75715), (285, 74121), (465, 45429), (589, 35865), (797, 26505), (855, 24707), (1395, 15143), (1767, 11955), (2391, 8835), (2945, 7173), (3985, 5301)]