199892217

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{71569}}^1$

素因数の和:71605

約数の個数: 24

約数和(自身を含む): 326359200

約数和(自身を除く): 126466983

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 71569, 214707, 500983, 1359811, 1502949, 3506881, 4079433, 9518677, 10520643, 28556031, 66630739, 199892217]

約数ペア:

[(1, 199892217), (3, 66630739), (7, 28556031), (19, 10520643), (21, 9518677), (49, 4079433), (57, 3506881), (133, 1502949), (147, 1359811), (399, 500983), (931, 214707), (2793, 71569)]