21339656

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6619}}^1$

素因数の和:6669

約数の個数: 32

約数和(自身を含む): 44486400

約数和(自身を除く): 23146744

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 6619, 13238, 26476, 52952, 86047, 172094, 205189, 344188, 410378, 688376, 820756, 1641512, 2667457, 5334914, 10669828, 21339656]

約数ペア:

[(1, 21339656), (2, 10669828), (4, 5334914), (8, 2667457), (13, 1641512), (26, 820756), (31, 688376), (52, 410378), (62, 344188), (104, 205189), (124, 172094), (248, 86047), (403, 52952), (806, 26476), (1612, 13238), (3224, 6619)]