18304418

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:362

約数の個数: 32

約数和(自身を含む): 31190400

約数和(自身を除く): 12885982

約数列:

[1, 2, 11, 22, 37, 74, 113, 199, 226, 398, 407, 814, 1243, 2189, 2486, 4181, 4378, 7363, 8362, 14726, 22487, 44974, 45991, 80993, 91982, 161986, 247357, 494714, 832019, 1664038, 9152209, 18304418]

約数ペア:

[(1, 18304418), (2, 9152209), (11, 1664038), (22, 832019), (37, 494714), (74, 247357), (113, 161986), (199, 91982), (226, 80993), (398, 45991), (407, 44974), (814, 22487), (1243, 14726), (2189, 8362), (2486, 7363), (4181, 4378)]