21961845

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16829}}^1$

素因数の和:16869

約数の個数: 24

約数和(自身を含む): 39382200

約数和(自身を除く): 17420355

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 16829, 50487, 84145, 151461, 252435, 488041, 757305, 1464123, 2440205, 4392369, 7320615, 21961845]

約数ペア:

[(1, 21961845), (3, 7320615), (5, 4392369), (9, 2440205), (15, 1464123), (29, 757305), (45, 488041), (87, 252435), (145, 151461), (261, 84145), (435, 50487), (1305, 16829)]