644139219

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{118169}}^1$

素因数の和:118274

約数の個数: 16

約数和(自身を含む): 907545600

約数和(自身を除く): 263406381

約数列:

[1, 3, 23, 69, 79, 237, 1817, 5451, 118169, 354507, 2717887, 8153661, 9335351, 28006053, 214713073, 644139219]

約数ペア:

[(1, 644139219), (3, 214713073), (23, 28006053), (69, 9335351), (79, 8153661), (237, 2717887), (1817, 354507), (5451, 118169)]