21787260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3001}}^1$

素因数の和:3035

約数の個数: 72

約数和(自身を含む): 67076688

約数和(自身を除く): 45289428

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 121, 132, 165, 220, 242, 330, 363, 484, 605, 660, 726, 1210, 1452, 1815, 2420, 3001, 3630, 6002, 7260, 9003, 12004, 15005, 18006, 30010, 33011, 36012, 45015, 60020, 66022, 90030, 99033, 132044, 165055, 180060, 198066, 330110, 363121, 396132, 495165, 660220, 726242, 990330, 1089363, 1452484, 1815605, 1980660, 2178726, 3631210, 4357452, 5446815, 7262420, 10893630, 21787260]

約数ペア:

[(1, 21787260), (2, 10893630), (3, 7262420), (4, 5446815), (5, 4357452), (6, 3631210), (10, 2178726), (11, 1980660), (12, 1815605), (15, 1452484), (20, 1089363), (22, 990330), (30, 726242), (33, 660220), (44, 495165), (55, 396132), (60, 363121), (66, 330110), (110, 198066), (121, 180060), (132, 165055), (165, 132044), (220, 99033), (242, 90030), (330, 66022), (363, 60020), (484, 45015), (605, 36012), (660, 33011), (726, 30010), (1210, 18006), (1452, 15005), (1815, 12004), (2420, 9003), (3001, 7260), (3630, 6002)]