21738178

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{141157}}^1$

素因数の和:141177

約数の個数: 16

約数和(自身を含む): 40653504

約数和(自身を除く): 18915326

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 141157, 282314, 988099, 1552727, 1976198, 3105454, 10869089, 21738178]

約数ペア:

[(1, 21738178), (2, 10869089), (7, 3105454), (11, 1976198), (14, 1552727), (22, 988099), (77, 282314), (154, 141157)]