21390732

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2843}}^1$

素因数の和:2883

約数の個数: 72

約数和(自身を含む): 62112960

約数和(自身を除く): 40722228

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 19, 22, 33, 36, 38, 44, 57, 66, 76, 99, 114, 132, 171, 198, 209, 228, 342, 396, 418, 627, 684, 836, 1254, 1881, 2508, 2843, 3762, 5686, 7524, 8529, 11372, 17058, 25587, 31273, 34116, 51174, 54017, 62546, 93819, 102348, 108034, 125092, 162051, 187638, 216068, 281457, 324102, 375276, 486153, 562914, 594187, 648204, 972306, 1125828, 1188374, 1782561, 1944612, 2376748, 3565122, 5347683, 7130244, 10695366, 21390732]

約数ペア:

[(1, 21390732), (2, 10695366), (3, 7130244), (4, 5347683), (6, 3565122), (9, 2376748), (11, 1944612), (12, 1782561), (18, 1188374), (19, 1125828), (22, 972306), (33, 648204), (36, 594187), (38, 562914), (44, 486153), (57, 375276), (66, 324102), (76, 281457), (99, 216068), (114, 187638), (132, 162051), (171, 125092), (198, 108034), (209, 102348), (228, 93819), (342, 62546), (396, 54017), (418, 51174), (627, 34116), (684, 31273), (836, 25587), (1254, 17058), (1881, 11372), (2508, 8529), (2843, 7524), (3762, 5686)]