20982078

素因数分解:

$2^1\times 3^9\times {\mathrm{13}}^1\times {\mathrm{41}}^1$

素因数の和:83

約数の個数: 80

約数和(自身を含む): 52080336

約数和(自身を除く): 31098258

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 41, 54, 78, 81, 82, 117, 123, 162, 234, 243, 246, 351, 369, 486, 533, 702, 729, 738, 1053, 1066, 1107, 1458, 1599, 2106, 2187, 2214, 3159, 3198, 3321, 4374, 4797, 6318, 6561, 6642, 9477, 9594, 9963, 13122, 14391, 18954, 19683, 19926, 28431, 28782, 29889, 39366, 43173, 56862, 59778, 85293, 86346, 89667, 129519, 170586, 179334, 255879, 259038, 269001, 388557, 511758, 538002, 777114, 807003, 1165671, 1614006, 2331342, 3497013, 6994026, 10491039, 20982078]

約数ペア:

[(1, 20982078), (2, 10491039), (3, 6994026), (6, 3497013), (9, 2331342), (13, 1614006), (18, 1165671), (26, 807003), (27, 777114), (39, 538002), (41, 511758), (54, 388557), (78, 269001), (81, 259038), (82, 255879), (117, 179334), (123, 170586), (162, 129519), (234, 89667), (243, 86346), (246, 85293), (351, 59778), (369, 56862), (486, 43173), (533, 39366), (702, 29889), (729, 28782), (738, 28431), (1053, 19926), (1066, 19683), (1107, 18954), (1458, 14391), (1599, 13122), (2106, 9963), (2187, 9594), (2214, 9477), (3159, 6642), (3198, 6561), (3321, 6318), (4374, 4797)]