21346305

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{863}}^1$

素因数の和:985

約数の個数: 32

約数和(自身を含む): 36578304

約数和(自身を除く): 15231999

約数列:

[1, 3, 5, 15, 17, 51, 85, 97, 255, 291, 485, 863, 1455, 1649, 2589, 4315, 4947, 8245, 12945, 14671, 24735, 44013, 73355, 83711, 220065, 251133, 418555, 1255665, 1423087, 4269261, 7115435, 21346305]

約数ペア:

[(1, 21346305), (3, 7115435), (5, 4269261), (15, 1423087), (17, 1255665), (51, 418555), (85, 251133), (97, 220065), (255, 83711), (291, 73355), (485, 44013), (863, 24735), (1455, 14671), (1649, 12945), (2589, 8245), (4315, 4947)]