21322015

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{2711}}^1$

素因数の和:2751

約数の個数: 24

約数和(自身を含む): 30298464

約数和(自身を除く): 8976449

約数列:

[1, 5, 11, 13, 55, 65, 121, 143, 605, 715, 1573, 2711, 7865, 13555, 29821, 35243, 149105, 176215, 328031, 387673, 1640155, 1938365, 4264403, 21322015]

約数ペア:

[(1, 21322015), (5, 4264403), (11, 1938365), (13, 1640155), (55, 387673), (65, 328031), (121, 176215), (143, 149105), (605, 35243), (715, 29821), (1573, 13555), (2711, 7865)]