21805740

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3671}}^1$

素因数の和:3700

約数の個数: 96

約数和(自身を含む): 74027520

約数和(自身を除く): 52221780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 90, 99, 108, 110, 132, 135, 165, 180, 198, 220, 270, 297, 330, 396, 495, 540, 594, 660, 990, 1188, 1485, 1980, 2970, 3671, 5940, 7342, 11013, 14684, 18355, 22026, 33039, 36710, 40381, 44052, 55065, 66078, 73420, 80762, 99117, 110130, 121143, 132156, 161524, 165195, 198234, 201905, 220260, 242286, 330390, 363429, 396468, 403810, 484572, 495585, 605715, 660780, 726858, 807620, 991170, 1090287, 1211430, 1453716, 1817145, 1982340, 2180574, 2422860, 3634290, 4361148, 5451435, 7268580, 10902870, 21805740]

約数ペア:

[(1, 21805740), (2, 10902870), (3, 7268580), (4, 5451435), (5, 4361148), (6, 3634290), (9, 2422860), (10, 2180574), (11, 1982340), (12, 1817145), (15, 1453716), (18, 1211430), (20, 1090287), (22, 991170), (27, 807620), (30, 726858), (33, 660780), (36, 605715), (44, 495585), (45, 484572), (54, 403810), (55, 396468), (60, 363429), (66, 330390), (90, 242286), (99, 220260), (108, 201905), (110, 198234), (132, 165195), (135, 161524), (165, 132156), (180, 121143), (198, 110130), (220, 99117), (270, 80762), (297, 73420), (330, 66078), (396, 55065), (495, 44052), (540, 40381), (594, 36710), (660, 33039), (990, 22026), (1188, 18355), (1485, 14684), (1980, 11013), (2970, 7342), (3671, 5940)]