18968612

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{263}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 38290560

約数和(自身を除く): 19321948

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 73, 76, 146, 247, 263, 292, 494, 526, 949, 988, 1052, 1387, 1898, 2774, 3419, 3796, 4997, 5548, 6838, 9994, 13676, 18031, 19199, 19988, 36062, 38398, 64961, 72124, 76796, 129922, 249587, 259844, 364781, 499174, 729562, 998348, 1459124, 4742153, 9484306, 18968612]

約数ペア:

[(1, 18968612), (2, 9484306), (4, 4742153), (13, 1459124), (19, 998348), (26, 729562), (38, 499174), (52, 364781), (73, 259844), (76, 249587), (146, 129922), (247, 76796), (263, 72124), (292, 64961), (494, 38398), (526, 36062), (949, 19988), (988, 19199), (1052, 18031), (1387, 13676), (1898, 9994), (2774, 6838), (3419, 5548), (3796, 4997)]