421421

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1$

素因数の和:452

約数の個数: 16

約数和(自身を含む): 567168

約数和(自身を除く): 145747

約数列:

[1, 7, 11, 13, 77, 91, 143, 421, 1001, 2947, 4631, 5473, 32417, 38311, 60203, 421421]

約数ペア:

[(1, 421421), (7, 60203), (11, 38311), (13, 32417), (77, 5473), (91, 4631), (143, 2947), (421, 1001)]