17897890

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{389}}^1$

素因数の和:546

約数の個数: 32

約数和(自身を含む): 33359040

約数和(自身を除く): 15461150

約数列:

[1, 2, 5, 10, 43, 86, 107, 214, 215, 389, 430, 535, 778, 1070, 1945, 3890, 4601, 9202, 16727, 23005, 33454, 41623, 46010, 83246, 83635, 167270, 208115, 416230, 1789789, 3579578, 8948945, 17897890]

約数ペア:

[(1, 17897890), (2, 8948945), (5, 3579578), (10, 1789789), (43, 416230), (86, 208115), (107, 167270), (214, 83635), (215, 83246), (389, 46010), (430, 41623), (535, 33454), (778, 23005), (1070, 16727), (1945, 9202), (3890, 4601)]