642597

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:232

約数の個数: 16

約数和(自身を含む): 913920

約数和(自身を除く): 271323

約数列:

[1, 3, 23, 67, 69, 139, 201, 417, 1541, 3197, 4623, 9313, 9591, 27939, 214199, 642597]

約数ペア:

[(1, 642597), (3, 214199), (23, 27939), (67, 9591), (69, 9313), (139, 4623), (201, 3197), (417, 1541)]