20787254

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:284

約数の個数: 32

約数和(自身を含む): 34145280

約数和(自身を除く): 13358026

約数列:

[1, 2, 19, 38, 47, 94, 103, 113, 206, 226, 893, 1786, 1957, 2147, 3914, 4294, 4841, 5311, 9682, 10622, 11639, 23278, 91979, 100909, 183958, 201818, 221141, 442282, 547033, 1094066, 10393627, 20787254]

約数ペア:

[(1, 20787254), (2, 10393627), (19, 1094066), (38, 547033), (47, 442282), (94, 221141), (103, 201818), (113, 183958), (206, 100909), (226, 91979), (893, 23278), (1786, 11639), (1957, 10622), (2147, 9682), (3914, 5311), (4294, 4841)]