20528365

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28711}}^1$

素因数の和:28740

約数の個数: 16

約数和(自身を含む): 28941696

約数和(自身を除く): 8413331

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 28711, 143555, 315821, 373243, 1579105, 1866215, 4105673, 20528365]

約数ペア:

[(1, 20528365), (5, 4105673), (11, 1866215), (13, 1579105), (55, 373243), (65, 315821), (143, 143555), (715, 28711)]