17720948

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{3931}}^1$

素因数の和:3972

約数の個数: 36

約数和(自身を含む): 37652832

約数和(自身を除く): 19931884

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 92, 98, 161, 196, 322, 644, 1127, 2254, 3931, 4508, 7862, 15724, 27517, 55034, 90413, 110068, 180826, 192619, 361652, 385238, 632891, 770476, 1265782, 2531564, 4430237, 8860474, 17720948]

約数ペア:

[(1, 17720948), (2, 8860474), (4, 4430237), (7, 2531564), (14, 1265782), (23, 770476), (28, 632891), (46, 385238), (49, 361652), (92, 192619), (98, 180826), (161, 110068), (196, 90413), (322, 55034), (644, 27517), (1127, 15724), (2254, 7862), (3931, 4508)]