20047545

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2053}}^1$

素因数の和:2102

約数の個数: 48

約数和(自身を含む): 41014272

約数和(自身を除く): 20966727

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 63, 93, 105, 155, 217, 279, 315, 465, 651, 1085, 1395, 1953, 2053, 3255, 6159, 9765, 10265, 14371, 18477, 30795, 43113, 63643, 71855, 92385, 129339, 190929, 215565, 318215, 445501, 572787, 646695, 954645, 1336503, 2227505, 2863935, 4009509, 6682515, 20047545]

約数ペア:

[(1, 20047545), (3, 6682515), (5, 4009509), (7, 2863935), (9, 2227505), (15, 1336503), (21, 954645), (31, 646695), (35, 572787), (45, 445501), (63, 318215), (93, 215565), (105, 190929), (155, 129339), (217, 92385), (279, 71855), (315, 63643), (465, 43113), (651, 30795), (1085, 18477), (1395, 14371), (1953, 10265), (2053, 9765), (3255, 6159)]