21491946

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{56857}}^1$

素因数の和:56875

約数の個数: 32

約数和(自身を含む): 54583680

約数和(自身を除く): 33091734

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 56857, 113714, 170571, 341142, 397999, 511713, 795998, 1023426, 1193997, 1535139, 2387994, 3070278, 3581991, 7163982, 10745973, 21491946]

約数ペア:

[(1, 21491946), (2, 10745973), (3, 7163982), (6, 3581991), (7, 3070278), (9, 2387994), (14, 1535139), (18, 1193997), (21, 1023426), (27, 795998), (42, 511713), (54, 397999), (63, 341142), (126, 170571), (189, 113714), (378, 56857)]