21492086

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19937}}^1$

素因数の和:19964

約数の個数: 24

約数和(自身を含む): 40912776

約数和(自身を除く): 19420690

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 19937, 39874, 139559, 219307, 279118, 438614, 976913, 1535149, 1953826, 3070298, 10746043, 21492086]

約数ペア:

[(1, 21492086), (2, 10746043), (7, 3070298), (11, 1953826), (14, 1535149), (22, 976913), (49, 438614), (77, 279118), (98, 219307), (154, 139559), (539, 39874), (1078, 19937)]