19854369

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{10357}}^1$

素因数の和:10437

約数の個数: 16

約数和(自身を含む): 29831040

約数和(自身を除く): 9976671

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 10357, 31071, 93213, 279639, 735347, 2206041, 6618123, 19854369]

約数ペア:

[(1, 19854369), (3, 6618123), (9, 2206041), (27, 735347), (71, 279639), (213, 93213), (639, 31071), (1917, 10357)]