21128580

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3557}}^1$

素因数の和:3586

約数の個数: 96

約数和(自身を含む): 71729280

約数和(自身を除く): 50600700

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, 3557, 5940, 7114, 10671, 14228, 17785, 21342, 32013, 35570, 39127, 42684, 53355, 64026, 71140, 78254, 96039, 106710, 117381, 128052, 156508, 160065, 192078, 195635, 213420, 234762, 320130, 352143, 384156, 391270, 469524, 480195, 586905, 640260, 704286, 782540, 960390, 1056429, 1173810, 1408572, 1760715, 1920780, 2112858, 2347620, 3521430, 4225716, 5282145, 7042860, 10564290, 21128580]

約数ペア:

[(1, 21128580), (2, 10564290), (3, 7042860), (4, 5282145), (5, 4225716), (6, 3521430), (9, 2347620), (10, 2112858), (11, 1920780), (12, 1760715), (15, 1408572), (18, 1173810), (20, 1056429), (22, 960390), (27, 782540), (30, 704286), (33, 640260), (36, 586905), (44, 480195), (45, 469524), (54, 391270), (55, 384156), (60, 352143), (66, 320130), (90, 234762), (99, 213420), (108, 195635), (110, 192078), (132, 160065), (135, 156508), (165, 128052), (180, 117381), (198, 106710), (220, 96039), (270, 78254), (297, 71140), (330, 64026), (396, 53355), (495, 42684), (540, 39127), (594, 35570), (660, 32013), (990, 21342), (1188, 17785), (1485, 14228), (1980, 10671), (2970, 7114), (3557, 5940)]