20473245

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{443}}^1$

素因数の和:546

約数の個数: 48

約数和(自身を含む): 38787840

約数和(自身を除く): 18314595

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 79, 117, 195, 237, 395, 443, 585, 711, 1027, 1185, 1329, 2215, 3081, 3555, 3987, 5135, 5759, 6645, 9243, 15405, 17277, 19935, 28795, 34997, 46215, 51831, 86385, 104991, 174985, 259155, 314973, 454961, 524955, 1364883, 1574865, 2274805, 4094649, 6824415, 20473245]

約数ペア:

[(1, 20473245), (3, 6824415), (5, 4094649), (9, 2274805), (13, 1574865), (15, 1364883), (39, 524955), (45, 454961), (65, 314973), (79, 259155), (117, 174985), (195, 104991), (237, 86385), (395, 51831), (443, 46215), (585, 34997), (711, 28795), (1027, 19935), (1185, 17277), (1329, 15405), (2215, 9243), (3081, 6645), (3555, 5759), (3987, 5135)]