18658612

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{4139}}^1$

素因数の和:4180

約数の個数: 36

約数和(自身を含む): 39644640

約数和(自身を除く): 20986028

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 92, 98, 161, 196, 322, 644, 1127, 2254, 4139, 4508, 8278, 16556, 28973, 57946, 95197, 115892, 190394, 202811, 380788, 405622, 666379, 811244, 1332758, 2665516, 4664653, 9329306, 18658612]

約数ペア:

[(1, 18658612), (2, 9329306), (4, 4664653), (7, 2665516), (14, 1332758), (23, 811244), (28, 666379), (46, 405622), (49, 380788), (92, 202811), (98, 190394), (161, 115892), (196, 95197), (322, 57946), (644, 28973), (1127, 16556), (2254, 8278), (4139, 4508)]