18962181

素因数分解:

$3^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{631}}^1$

素因数の和:703

約数の個数: 40

約数和(自身を含む): 33035904

約数和(自身を除く): 14073723

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 81, 159, 189, 371, 477, 567, 631, 1113, 1431, 1893, 3339, 4293, 4417, 5679, 10017, 13251, 17037, 30051, 33443, 39753, 51111, 100329, 119259, 234101, 300987, 357777, 702303, 902961, 2106909, 2708883, 6320727, 18962181]

約数ペア:

[(1, 18962181), (3, 6320727), (7, 2708883), (9, 2106909), (21, 902961), (27, 702303), (53, 357777), (63, 300987), (81, 234101), (159, 119259), (189, 100329), (371, 51111), (477, 39753), (567, 33443), (631, 30051), (1113, 17037), (1431, 13251), (1893, 10017), (3339, 5679), (4293, 4417)]