18978786

素因数分解:

$2^1\times 3^7\times {\mathrm{4339}}^1$

素因数の和:4362

約数の個数: 32

約数和(自身を含む): 42705600

約数和(自身を除く): 23726814

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486, 729, 1458, 2187, 4339, 4374, 8678, 13017, 26034, 39051, 78102, 117153, 234306, 351459, 702918, 1054377, 2108754, 3163131, 6326262, 9489393, 18978786]

約数ペア:

[(1, 18978786), (2, 9489393), (3, 6326262), (6, 3163131), (9, 2108754), (18, 1054377), (27, 702918), (54, 351459), (81, 234306), (162, 117153), (243, 78102), (486, 39051), (729, 26034), (1458, 13017), (2187, 8678), (4339, 4374)]