19218545

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1\times {\mathrm{389}}^1$

素因数の和:676

約数の個数: 16

約数和(自身を含む): 23783760

約数和(自身を除く): 4565215

約数列:

[1, 5, 41, 205, 241, 389, 1205, 1945, 9881, 15949, 49405, 79745, 93749, 468745, 3843709, 19218545]

約数ペア:

[(1, 19218545), (5, 3843709), (41, 468745), (205, 93749), (241, 79745), (389, 49405), (1205, 15949), (1945, 9881)]