19713743

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{461}}^1$

素因数の和:658

約数の個数: 16

約数和(自身を含む): 23284800

約数和(自身を除く): 3571057

約数列:

[1, 7, 41, 149, 287, 461, 1043, 3227, 6109, 18901, 42763, 68689, 132307, 480823, 2816249, 19713743]

約数ペア:

[(1, 19713743), (7, 2816249), (41, 480823), (149, 132307), (287, 68689), (461, 42763), (1043, 18901), (3227, 6109)]