21985370

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{269}}^1\times {\mathrm{743}}^1$

素因数の和:1030

約数の個数: 32

約数和(自身を含む): 43390080

約数和(自身を除く): 21404710

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 269, 538, 743, 1345, 1486, 2690, 2959, 3715, 5918, 7430, 8173, 14795, 16346, 29590, 40865, 81730, 199867, 399734, 999335, 1998670, 2198537, 4397074, 10992685, 21985370]

約数ペア:

[(1, 21985370), (2, 10992685), (5, 4397074), (10, 2198537), (11, 1998670), (22, 999335), (55, 399734), (110, 199867), (269, 81730), (538, 40865), (743, 29590), (1345, 16346), (1486, 14795), (2690, 8173), (2959, 7430), (3715, 5918)]