21431806

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{233}}^1$

素因数の和:396

約数の個数: 32

約数和(自身を含む): 36492768

約数和(自身を除く): 15060962

約数列:

[1, 2, 11, 22, 37, 74, 113, 226, 233, 407, 466, 814, 1243, 2486, 2563, 4181, 5126, 8362, 8621, 17242, 26329, 45991, 52658, 91982, 94831, 189662, 289619, 579238, 974173, 1948346, 10715903, 21431806]

約数ペア:

[(1, 21431806), (2, 10715903), (11, 1948346), (22, 974173), (37, 579238), (74, 289619), (113, 189662), (226, 94831), (233, 91982), (407, 52658), (466, 45991), (814, 26329), (1243, 17242), (2486, 8621), (2563, 8362), (4181, 5126)]