19156305

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{389}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 36279360

約数和(自身を除く): 17123055

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 67, 105, 147, 201, 245, 335, 389, 469, 735, 1005, 1167, 1407, 1945, 2345, 2723, 3283, 5835, 7035, 8169, 9849, 13615, 16415, 19061, 26063, 40845, 49245, 57183, 78189, 95305, 130315, 182441, 285915, 390945, 547323, 912205, 1277087, 2736615, 3831261, 6385435, 19156305]

約数ペア:

[(1, 19156305), (3, 6385435), (5, 3831261), (7, 2736615), (15, 1277087), (21, 912205), (35, 547323), (49, 390945), (67, 285915), (105, 182441), (147, 130315), (201, 95305), (245, 78189), (335, 57183), (389, 49245), (469, 40845), (735, 26063), (1005, 19061), (1167, 16415), (1407, 13615), (1945, 9849), (2345, 8169), (2723, 7035), (3283, 5835)]