30281607

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{21991}}^1$

素因数の和:22020

約数の個数: 20

約数和(自身を含む): 47898576

約数和(自身を除く): 17616969

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 21991, 65973, 197919, 373847, 593757, 1121541, 1781271, 3364623, 10093869, 30281607]

約数ペア:

[(1, 30281607), (3, 10093869), (9, 3364623), (17, 1781271), (27, 1121541), (51, 593757), (81, 373847), (153, 197919), (459, 65973), (1377, 21991)]