920721

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{557}}^1$

素因数の和:608

約数の個数: 16

約数和(自身を含む): 1339200

約数和(自身を除く): 418479

約数列:

[1, 3, 19, 29, 57, 87, 551, 557, 1653, 1671, 10583, 16153, 31749, 48459, 306907, 920721]

約数ペア:

[(1, 920721), (3, 306907), (19, 48459), (29, 31749), (57, 16153), (87, 10583), (551, 1671), (557, 1653)]