21947286

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{331}}^1$

素因数の和:636

約数の個数: 32

約数和(自身を含む): 45226368

約数和(自身を除く): 23279082

約数列:

[1, 2, 3, 6, 43, 86, 129, 257, 258, 331, 514, 662, 771, 993, 1542, 1986, 11051, 14233, 22102, 28466, 33153, 42699, 66306, 85067, 85398, 170134, 255201, 510402, 3657881, 7315762, 10973643, 21947286]

約数ペア:

[(1, 21947286), (2, 10973643), (3, 7315762), (6, 3657881), (43, 510402), (86, 255201), (129, 170134), (257, 85398), (258, 85067), (331, 66306), (514, 42699), (662, 33153), (771, 28466), (993, 22102), (1542, 14233), (1986, 11051)]