644927478

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{8268301}}^1$

素因数の和:8268319

約数の個数: 16

約数和(自身を含む): 1389074736

約数和(自身を除く): 744147258

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 8268301, 16536602, 24804903, 49609806, 107487913, 214975826, 322463739, 644927478]

約数ペア:

[(1, 644927478), (2, 322463739), (3, 214975826), (6, 107487913), (13, 49609806), (26, 24804903), (39, 16536602), (78, 8268301)]