21192156

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{383}}^1$

素因数の和:475

約数の個数: 72

約数和(自身を含む): 56609280

約数和(自身を除く): 35417124

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 53, 58, 87, 106, 116, 159, 174, 212, 261, 318, 348, 383, 477, 522, 636, 766, 954, 1044, 1149, 1532, 1537, 1908, 2298, 3074, 3447, 4596, 4611, 6148, 6894, 9222, 11107, 13788, 13833, 18444, 20299, 22214, 27666, 33321, 40598, 44428, 55332, 60897, 66642, 81196, 99963, 121794, 133284, 182691, 199926, 243588, 365382, 399852, 588671, 730764, 1177342, 1766013, 2354684, 3532026, 5298039, 7064052, 10596078, 21192156]

約数ペア:

[(1, 21192156), (2, 10596078), (3, 7064052), (4, 5298039), (6, 3532026), (9, 2354684), (12, 1766013), (18, 1177342), (29, 730764), (36, 588671), (53, 399852), (58, 365382), (87, 243588), (106, 199926), (116, 182691), (159, 133284), (174, 121794), (212, 99963), (261, 81196), (318, 66642), (348, 60897), (383, 55332), (477, 44428), (522, 40598), (636, 33321), (766, 27666), (954, 22214), (1044, 20299), (1149, 18444), (1532, 13833), (1537, 13788), (1908, 11107), (2298, 9222), (3074, 6894), (3447, 6148), (4596, 4611)]