21261190

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{317}}^1\times {\mathrm{353}}^1$

素因数の和:696

約数の個数: 32

約数和(自身を含む): 40525920

約数和(自身を除く): 19264730

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 317, 353, 634, 706, 1585, 1765, 3170, 3530, 6023, 6707, 12046, 13414, 30115, 33535, 60230, 67070, 111901, 223802, 559505, 1119010, 2126119, 4252238, 10630595, 21261190]

約数ペア:

[(1, 21261190), (2, 10630595), (5, 4252238), (10, 2126119), (19, 1119010), (38, 559505), (95, 223802), (190, 111901), (317, 67070), (353, 60230), (634, 33535), (706, 30115), (1585, 13414), (1765, 12046), (3170, 6707), (3530, 6023)]