319431

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:111

約数の個数: 24

約数和(自身を含む): 517104

約数和(自身を除く): 197673

約数列:

[1, 3, 7, 21, 41, 49, 53, 123, 147, 159, 287, 371, 861, 1113, 2009, 2173, 2597, 6027, 6519, 7791, 15211, 45633, 106477, 319431]

約数ペア:

[(1, 319431), (3, 106477), (7, 45633), (21, 15211), (41, 7791), (49, 6519), (53, 6027), (123, 2597), (147, 2173), (159, 2009), (287, 1113), (371, 861)]