21276488

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{293}}^1\times {\mathrm{313}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 41542200

約数和(自身を除く): 20265712

約数列:

[1, 2, 4, 8, 29, 58, 116, 232, 293, 313, 586, 626, 1172, 1252, 2344, 2504, 8497, 9077, 16994, 18154, 33988, 36308, 67976, 72616, 91709, 183418, 366836, 733672, 2659561, 5319122, 10638244, 21276488]

約数ペア:

[(1, 21276488), (2, 10638244), (4, 5319122), (8, 2659561), (29, 733672), (58, 366836), (116, 183418), (232, 91709), (293, 72616), (313, 67976), (586, 36308), (626, 33988), (1172, 18154), (1252, 16994), (2344, 9077), (2504, 8497)]