39981994

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^3\times {\mathrm{313}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 68841360

約数和(自身を除く): 28859366

約数列:

[1, 2, 13, 17, 26, 34, 221, 289, 313, 442, 578, 626, 3757, 4069, 4913, 5321, 7514, 8138, 9826, 10642, 63869, 69173, 90457, 127738, 138346, 180914, 1175941, 1537769, 2351882, 3075538, 19990997, 39981994]

約数ペア:

[(1, 39981994), (2, 19990997), (13, 3075538), (17, 2351882), (26, 1537769), (34, 1175941), (221, 180914), (289, 138346), (313, 127738), (442, 90457), (578, 69173), (626, 63869), (3757, 10642), (4069, 9826), (4913, 8138), (5321, 7514)]