20709045

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2267}}^1$

素因数の和:2314

約数の個数: 48

約数和(自身を含む): 42456960

約数和(自身を除く): 21747915

約数列:

[1, 3, 5, 7, 9, 15, 21, 29, 35, 45, 63, 87, 105, 145, 203, 261, 315, 435, 609, 1015, 1305, 1827, 2267, 3045, 6801, 9135, 11335, 15869, 20403, 34005, 47607, 65743, 79345, 102015, 142821, 197229, 238035, 328715, 460201, 591687, 714105, 986145, 1380603, 2301005, 2958435, 4141809, 6903015, 20709045]

約数ペア:

[(1, 20709045), (3, 6903015), (5, 4141809), (7, 2958435), (9, 2301005), (15, 1380603), (21, 986145), (29, 714105), (35, 591687), (45, 460201), (63, 328715), (87, 238035), (105, 197229), (145, 142821), (203, 102015), (261, 79345), (315, 65743), (435, 47607), (609, 34005), (1015, 20403), (1305, 15869), (1827, 11335), (2267, 9135), (3045, 6801)]