20847967

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{4273}}^1$

素因数の和:4338

約数の個数: 16

約数和(自身を含む): 25849152

約数和(自身を除く): 5001185

約数列:

[1, 7, 17, 41, 119, 287, 697, 4273, 4879, 29911, 72641, 175193, 508487, 1226351, 2978281, 20847967]

約数ペア:

[(1, 20847967), (7, 2978281), (17, 1226351), (41, 508487), (119, 175193), (287, 72641), (697, 29911), (4273, 4879)]