20528987

素因数分解:

${\mathrm{19}}^3\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:171

約数の個数: 16

約数和(自身を含む): 22501920

約数和(自身を除く): 1972933

約数列:

[1, 19, 41, 73, 361, 779, 1387, 2993, 6859, 14801, 26353, 56867, 281219, 500707, 1080473, 20528987]

約数ペア:

[(1, 20528987), (19, 1080473), (41, 500707), (73, 281219), (361, 56867), (779, 26353), (1387, 14801), (2993, 6859)]