19564173

素因数分解:

$3^6\times {\mathrm{47}}^1\times {\mathrm{571}}^1$

素因数の和:636

約数の個数: 28

約数和(自身を含む): 30009408

約数和(自身を除く): 10445235

約数列:

[1, 3, 9, 27, 47, 81, 141, 243, 423, 571, 729, 1269, 1713, 3807, 5139, 11421, 15417, 26837, 34263, 46251, 80511, 138753, 241533, 416259, 724599, 2173797, 6521391, 19564173]

約数ペア:

[(1, 19564173), (3, 6521391), (9, 2173797), (27, 724599), (47, 416259), (81, 241533), (141, 138753), (243, 80511), (423, 46251), (571, 34263), (729, 26837), (1269, 15417), (1713, 11421), (3807, 5139)]