21871223

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{461}}^1$

素因数の和:718

約数の個数: 16

約数和(自身を含む): 25280640

約数和(自身を除く): 3409417

約数列:

[1, 11, 19, 209, 227, 461, 2497, 4313, 5071, 8759, 47443, 96349, 104647, 1151117, 1988293, 21871223]

約数ペア:

[(1, 21871223), (11, 1988293), (19, 1151117), (209, 104647), (227, 96349), (461, 47443), (2497, 8759), (4313, 5071)]