21610895

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1\times {\mathrm{389}}^1$

素因数の和:706

約数の個数: 16

約数和(自身を含む): 26732160

約数和(自身を除く): 5121265

約数列:

[1, 5, 41, 205, 271, 389, 1355, 1945, 11111, 15949, 55555, 79745, 105419, 527095, 4322179, 21610895]

約数ペア:

[(1, 21610895), (5, 4322179), (41, 527095), (205, 105419), (271, 79745), (389, 55555), (1355, 15949), (1945, 11111)]