20715814

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1657}}^1$

素因数の和:1732

約数の個数: 32

約数和(自身を含む): 38200320

約数和(自身を除く): 17484506

約数列:

[1, 2, 7, 14, 19, 38, 47, 94, 133, 266, 329, 658, 893, 1657, 1786, 3314, 6251, 11599, 12502, 23198, 31483, 62966, 77879, 155758, 220381, 440762, 545153, 1090306, 1479701, 2959402, 10357907, 20715814]

約数ペア:

[(1, 20715814), (2, 10357907), (7, 2959402), (14, 1479701), (19, 1090306), (38, 545153), (47, 440762), (94, 220381), (133, 155758), (266, 77879), (329, 62966), (658, 31483), (893, 23198), (1657, 12502), (1786, 11599), (3314, 6251)]