15920685

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 31518720

約数和(自身を除く): 15598035

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 71, 99, 135, 151, 165, 213, 297, 355, 453, 495, 639, 755, 781, 1065, 1359, 1485, 1661, 1917, 2265, 2343, 3195, 3905, 4077, 4983, 6795, 7029, 8305, 9585, 10721, 11715, 14949, 20385, 21087, 24915, 32163, 35145, 44847, 53605, 74745, 96489, 105435, 117931, 160815, 224235, 289467, 353793, 482445, 589655, 1061379, 1447335, 1768965, 3184137, 5306895, 15920685]

約数ペア:

[(1, 15920685), (3, 5306895), (5, 3184137), (9, 1768965), (11, 1447335), (15, 1061379), (27, 589655), (33, 482445), (45, 353793), (55, 289467), (71, 224235), (99, 160815), (135, 117931), (151, 105435), (165, 96489), (213, 74745), (297, 53605), (355, 44847), (453, 35145), (495, 32163), (639, 24915), (755, 21087), (781, 20385), (1065, 14949), (1359, 11715), (1485, 10721), (1661, 9585), (1917, 8305), (2265, 7029), (2343, 6795), (3195, 4983), (3905, 4077)]