21690492

素因数分解:

$2^2\times 3^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{397}}^1$

素因数の和:590

約数の個数: 48

約数和(自身を含む): 52822560

約数和(自身を除く): 31132068

約数列:

[1, 2, 3, 4, 6, 12, 29, 58, 87, 116, 157, 174, 314, 348, 397, 471, 628, 794, 942, 1191, 1588, 1884, 2382, 4553, 4764, 9106, 11513, 13659, 18212, 23026, 27318, 34539, 46052, 54636, 62329, 69078, 124658, 138156, 186987, 249316, 373974, 747948, 1807541, 3615082, 5422623, 7230164, 10845246, 21690492]

約数ペア:

[(1, 21690492), (2, 10845246), (3, 7230164), (4, 5422623), (6, 3615082), (12, 1807541), (29, 747948), (58, 373974), (87, 249316), (116, 186987), (157, 138156), (174, 124658), (314, 69078), (348, 62329), (397, 54636), (471, 46052), (628, 34539), (794, 27318), (942, 23026), (1191, 18212), (1588, 13659), (1884, 11513), (2382, 9106), (4553, 4764)]