2021568213

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5066587}}^1$

素因数の和:5066616

約数の個数: 16

約数和(自身を含む): 3242616320

約数和(自身を除く): 1221048107

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 5066587, 15199761, 35466109, 96265153, 106398327, 288795459, 673856071, 2021568213]

約数ペア:

[(1, 2021568213), (3, 673856071), (7, 288795459), (19, 106398327), (21, 96265153), (57, 35466109), (133, 15199761), (399, 5066587)]