2145465

素因数分解:

$3^2\times 5^1\times 7^3\times {\mathrm{139}}^1$

素因数の和:171

約数の個数: 48

約数和(自身を含む): 4368000

約数和(自身を除く): 2222535

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 139, 147, 245, 315, 343, 417, 441, 695, 735, 973, 1029, 1251, 1715, 2085, 2205, 2919, 3087, 4865, 5145, 6255, 6811, 8757, 14595, 15435, 20433, 34055, 43785, 47677, 61299, 102165, 143031, 238385, 306495, 429093, 715155, 2145465]

約数ペア:

[(1, 2145465), (3, 715155), (5, 429093), (7, 306495), (9, 238385), (15, 143031), (21, 102165), (35, 61299), (45, 47677), (49, 43785), (63, 34055), (105, 20433), (139, 15435), (147, 14595), (245, 8757), (315, 6811), (343, 6255), (417, 5145), (441, 4865), (695, 3087), (735, 2919), (973, 2205), (1029, 2085), (1251, 1715)]