1287839

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1$

素因数の和:470

約数の個数: 16

約数和(自身を含む): 1620480

約数和(自身を除く): 332641

約数列:

[1, 7, 19, 23, 133, 161, 421, 437, 2947, 3059, 7999, 9683, 55993, 67781, 183977, 1287839]

約数ペア:

[(1, 1287839), (7, 183977), (19, 67781), (23, 55993), (133, 9683), (161, 7999), (421, 3059), (437, 2947)]