21690006

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{571}}^1$

素因数の和:1076

約数の個数: 32

約数和(自身を含む): 46894848

約数和(自身を除く): 25204842

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 487, 571, 974, 1142, 1461, 1713, 2922, 3426, 6331, 7423, 12662, 14846, 18993, 22269, 37986, 44538, 278077, 556154, 834231, 1668462, 3615001, 7230002, 10845003, 21690006]

約数ペア:

[(1, 21690006), (2, 10845003), (3, 7230002), (6, 3615001), (13, 1668462), (26, 834231), (39, 556154), (78, 278077), (487, 44538), (571, 37986), (974, 22269), (1142, 18993), (1461, 14846), (1713, 12662), (2922, 7423), (3426, 6331)]