61219395

素因数分解:

$3^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2129}}^1$

素因数の和:2217

約数の個数: 40

約数和(自身を含む): 111339360

約数和(自身を除く): 50119965

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 81, 135, 213, 355, 405, 639, 1065, 1917, 2129, 3195, 5751, 6387, 9585, 10645, 19161, 28755, 31935, 57483, 95805, 151159, 172449, 287415, 453477, 755795, 862245, 1360431, 2267385, 4081293, 6802155, 12243879, 20406465, 61219395]

約数ペア:

[(1, 61219395), (3, 20406465), (5, 12243879), (9, 6802155), (15, 4081293), (27, 2267385), (45, 1360431), (71, 862245), (81, 755795), (135, 453477), (213, 287415), (355, 172449), (405, 151159), (639, 95805), (1065, 57483), (1917, 31935), (2129, 28755), (3195, 19161), (5751, 10645), (6387, 9585)]