21839180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1873}}^1$

素因数の和:1946

約数の個数: 48

約数和(自身を含む): 51002784

約数和(自身を除く): 29163604

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 106, 110, 212, 220, 265, 530, 583, 1060, 1166, 1873, 2332, 2915, 3746, 5830, 7492, 9365, 11660, 18730, 20603, 37460, 41206, 82412, 99269, 103015, 198538, 206030, 397076, 412060, 496345, 992690, 1091959, 1985380, 2183918, 4367836, 5459795, 10919590, 21839180]

約数ペア:

[(1, 21839180), (2, 10919590), (4, 5459795), (5, 4367836), (10, 2183918), (11, 1985380), (20, 1091959), (22, 992690), (44, 496345), (53, 412060), (55, 397076), (106, 206030), (110, 198538), (212, 103015), (220, 99269), (265, 82412), (530, 41206), (583, 37460), (1060, 20603), (1166, 18730), (1873, 11660), (2332, 9365), (2915, 7492), (3746, 5830)]