201720999

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1\times {\mathrm{6553}}^1$

素因数の和:6918

約数の個数: 16

約数和(自身を含む): 278518784

約数和(自身を除く): 76797785

約数列:

[1, 3, 31, 93, 331, 993, 6553, 10261, 19659, 30783, 203143, 609429, 2169043, 6507129, 67240333, 201720999]

約数ペア:

[(1, 201720999), (3, 67240333), (31, 6507129), (93, 2169043), (331, 609429), (993, 203143), (6553, 30783), (10261, 19659)]