21000994596

素因数分解:

$2^2\times 3^2\times {\mathrm{1871}}^1\times {\mathrm{311791}}^1$

素因数の和:313672

約数の個数: 36

約数和(自身を含む): 53114390784

約数和(自身を除く): 32113396188

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 1871, 3742, 5613, 7484, 11226, 16839, 22452, 33678, 67356, 311791, 623582, 935373, 1247164, 1870746, 2806119, 3741492, 5612238, 11224476, 583360961, 1166721922, 1750082883, 2333443844, 3500165766, 5250248649, 7000331532, 10500497298, 21000994596]

約数ペア:

[(1, 21000994596), (2, 10500497298), (3, 7000331532), (4, 5250248649), (6, 3500165766), (9, 2333443844), (12, 1750082883), (18, 1166721922), (36, 583360961), (1871, 11224476), (3742, 5612238), (5613, 3741492), (7484, 2806119), (11226, 1870746), (16839, 1247164), (22452, 935373), (33678, 623582), (67356, 311791)]