261639367

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{349}}^1$

素因数の和:607

約数の個数: 32

約数和(自身を含む): 320544000

約数和(自身を除く): 58904633

約数列:

[1, 11, 17, 19, 187, 209, 211, 323, 349, 2321, 3553, 3587, 3839, 4009, 5933, 6631, 39457, 44099, 65263, 68153, 72941, 73639, 112727, 749683, 810029, 1239997, 1251863, 1399141, 13770493, 15390551, 23785397, 261639367]

約数ペア:

[(1, 261639367), (11, 23785397), (17, 15390551), (19, 13770493), (187, 1399141), (209, 1251863), (211, 1239997), (323, 810029), (349, 749683), (2321, 112727), (3553, 73639), (3587, 72941), (3839, 68153), (4009, 65263), (5933, 44099), (6631, 39457)]