39881517

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{257}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 60334848

約数和(自身を除く): 20453331

約数列:

[1, 3, 13, 23, 39, 69, 173, 257, 299, 519, 771, 897, 2249, 3341, 3979, 5911, 6747, 10023, 11937, 17733, 44461, 51727, 76843, 133383, 155181, 230529, 577993, 1022603, 1733979, 3067809, 13293839, 39881517]

約数ペア:

[(1, 39881517), (3, 13293839), (13, 3067809), (23, 1733979), (39, 1022603), (69, 577993), (173, 230529), (257, 155181), (299, 133383), (519, 76843), (771, 51727), (897, 44461), (2249, 17733), (3341, 11937), (3979, 10023), (5911, 6747)]