207813921

素因数分解:

$3^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1\times {\mathrm{263}}^1$

素因数の和:661

約数の個数: 32

約数和(自身を含む): 321159168

約数和(自身を除く): 113345247

約数列:

[1, 3, 7, 21, 191, 197, 263, 573, 591, 789, 1337, 1379, 1841, 4011, 4137, 5523, 37627, 50233, 51811, 112881, 150699, 155433, 263389, 351631, 362677, 790167, 1054893, 1088031, 9895901, 29687703, 69271307, 207813921]

約数ペア:

[(1, 207813921), (3, 69271307), (7, 29687703), (21, 9895901), (191, 1088031), (197, 1054893), (263, 790167), (573, 362677), (591, 351631), (789, 263389), (1337, 155433), (1379, 150699), (1841, 112881), (4011, 51811), (4137, 50233), (5523, 37627)]