18747484

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{677}}^1$

素因数の和:754

約数の個数: 48

約数和(自身を含む): 40094208

約数和(自身を除く): 21346724

約数列:

[1, 2, 4, 7, 14, 23, 28, 43, 46, 86, 92, 161, 172, 301, 322, 602, 644, 677, 989, 1204, 1354, 1978, 2708, 3956, 4739, 6923, 9478, 13846, 15571, 18956, 27692, 29111, 31142, 58222, 62284, 108997, 116444, 203777, 217994, 407554, 435988, 669553, 815108, 1339106, 2678212, 4686871, 9373742, 18747484]

約数ペア:

[(1, 18747484), (2, 9373742), (4, 4686871), (7, 2678212), (14, 1339106), (23, 815108), (28, 669553), (43, 435988), (46, 407554), (86, 217994), (92, 203777), (161, 116444), (172, 108997), (301, 62284), (322, 58222), (602, 31142), (644, 29111), (677, 27692), (989, 18956), (1204, 15571), (1354, 13846), (1978, 9478), (2708, 6923), (3956, 4739)]