21331317

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^2\times {\mathrm{151}}^1$

素因数の和:230

約数の個数: 36

約数和(自身を含む): 34413408

約数和(自身を除く): 13082091

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 151, 217, 453, 651, 961, 1057, 1519, 2883, 3171, 4557, 4681, 6727, 7399, 14043, 20181, 22197, 32767, 47089, 98301, 141267, 145111, 229369, 435333, 688107, 1015777, 3047331, 7110439, 21331317]

約数ペア:

[(1, 21331317), (3, 7110439), (7, 3047331), (21, 1015777), (31, 688107), (49, 435333), (93, 229369), (147, 145111), (151, 141267), (217, 98301), (453, 47089), (651, 32767), (961, 22197), (1057, 20181), (1519, 14043), (2883, 7399), (3171, 6727), (4557, 4681)]