21216474

素因数分解:

$2^1\times 3^2\times {\mathrm{397}}^1\times {\mathrm{2969}}^1$

素因数の和:3374

約数の個数: 24

約数和(自身を含む): 46100340

約数和(自身を除く): 24883866

約数列:

[1, 2, 3, 6, 9, 18, 397, 794, 1191, 2382, 2969, 3573, 5938, 7146, 8907, 17814, 26721, 53442, 1178693, 2357386, 3536079, 7072158, 10608237, 21216474]

約数ペア:

[(1, 21216474), (2, 10608237), (3, 7072158), (6, 3536079), (9, 2357386), (18, 1178693), (397, 53442), (794, 26721), (1191, 17814), (2382, 8907), (2969, 7146), (3573, 5938)]