746991

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:251

約数の個数: 24

約数和(自身を含む): 1257984

約数和(自身を除く): 510993

約数列:

[1, 3, 7, 9, 21, 63, 71, 167, 213, 497, 501, 639, 1169, 1491, 1503, 3507, 4473, 10521, 11857, 35571, 82999, 106713, 248997, 746991]

約数ペア:

[(1, 746991), (3, 248997), (7, 106713), (9, 82999), (21, 35571), (63, 11857), (71, 10521), (167, 4473), (213, 3507), (497, 1503), (501, 1491), (639, 1169)]