20998098

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{311}}^1$

素因数の和:372

約数の個数: 72

約数和(自身を含む): 51787008

約数和(自身を除く): 30788910

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 31, 33, 62, 66, 93, 99, 121, 186, 198, 242, 279, 311, 341, 363, 558, 622, 682, 726, 933, 1023, 1089, 1866, 2046, 2178, 2799, 3069, 3421, 3751, 5598, 6138, 6842, 7502, 9641, 10263, 11253, 19282, 20526, 22506, 28923, 30789, 33759, 37631, 57846, 61578, 67518, 75262, 86769, 106051, 112893, 173538, 212102, 225786, 318153, 338679, 636306, 677358, 954459, 1166561, 1908918, 2333122, 3499683, 6999366, 10499049, 20998098]

約数ペア:

[(1, 20998098), (2, 10499049), (3, 6999366), (6, 3499683), (9, 2333122), (11, 1908918), (18, 1166561), (22, 954459), (31, 677358), (33, 636306), (62, 338679), (66, 318153), (93, 225786), (99, 212102), (121, 173538), (186, 112893), (198, 106051), (242, 86769), (279, 75262), (311, 67518), (341, 61578), (363, 57846), (558, 37631), (622, 33759), (682, 30789), (726, 28923), (933, 22506), (1023, 20526), (1089, 19282), (1866, 11253), (2046, 10263), (2178, 9641), (2799, 7502), (3069, 6842), (3421, 6138), (3751, 5598)]