21578562

素因数分解:

$2^1\times 3^4\times {\mathrm{133201}}^1$

素因数の和:133215

約数の個数: 20

約数和(自身を含む): 48352326

約数和(自身を除く): 26773764

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 133201, 266402, 399603, 799206, 1198809, 2397618, 3596427, 7192854, 10789281, 21578562]

約数ペア:

[(1, 21578562), (2, 10789281), (3, 7192854), (6, 3596427), (9, 2397618), (18, 1198809), (27, 799206), (54, 399603), (81, 266402), (162, 133201)]