21259455

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{202471}}^1$

素因数の和:202486

約数の個数: 16

約数和(自身を含む): 38874624

約数和(自身を除く): 17615169

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 202471, 607413, 1012355, 1417297, 3037065, 4251891, 7086485, 21259455]

約数ペア:

[(1, 21259455), (3, 7086485), (5, 4251891), (7, 3037065), (15, 1417297), (21, 1012355), (35, 607413), (105, 202471)]