19737218

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1\times {\mathrm{491}}^1$

素因数の和:793

約数の個数: 16

約数和(自身を含む): 30110400

約数和(自身を除く): 10373182

約数列:

[1, 2, 101, 199, 202, 398, 491, 982, 20099, 40198, 49591, 97709, 99182, 195418, 9868609, 19737218]

約数ペア:

[(1, 19737218), (2, 9868609), (101, 195418), (199, 99182), (202, 97709), (398, 49591), (491, 40198), (982, 20099)]