31138226

素因数分解:

$2^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{2389}}^1$

素因数の和:2431

約数の個数: 32

約数和(自身を含む): 57360000

約数和(自身を除く): 26221774

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 343, 686, 931, 1862, 2389, 4778, 6517, 13034, 16723, 33446, 45391, 90782, 117061, 234122, 317737, 635474, 819427, 1638854, 2224159, 4448318, 15569113, 31138226]

約数ペア:

[(1, 31138226), (2, 15569113), (7, 4448318), (14, 2224159), (19, 1638854), (38, 819427), (49, 635474), (98, 317737), (133, 234122), (266, 117061), (343, 90782), (686, 45391), (931, 33446), (1862, 16723), (2389, 13034), (4778, 6517)]