20885829

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{431}}^1\times {\mathrm{557}}^1$

素因数の和:1020

約数の個数: 16

約数和(自身を含む): 28926720

約数和(自身を除く): 8040891

約数列:

[1, 3, 29, 87, 431, 557, 1293, 1671, 12499, 16153, 37497, 48459, 240067, 720201, 6961943, 20885829]

約数ペア:

[(1, 20885829), (3, 6961943), (29, 720201), (87, 240067), (431, 48459), (557, 37497), (1293, 16153), (1671, 12499)]