21022100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{659}}^1$

素因数の和:713

約数の個数: 72

約数和(自身を含む): 51559200

約数和(自身を除く): 30537100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 29, 44, 50, 55, 58, 100, 110, 116, 145, 220, 275, 290, 319, 550, 580, 638, 659, 725, 1100, 1276, 1318, 1450, 1595, 2636, 2900, 3190, 3295, 6380, 6590, 7249, 7975, 13180, 14498, 15950, 16475, 19111, 28996, 31900, 32950, 36245, 38222, 65900, 72490, 76444, 95555, 144980, 181225, 191110, 210221, 362450, 382220, 420442, 477775, 724900, 840884, 955550, 1051105, 1911100, 2102210, 4204420, 5255525, 10511050, 21022100]

約数ペア:

[(1, 21022100), (2, 10511050), (4, 5255525), (5, 4204420), (10, 2102210), (11, 1911100), (20, 1051105), (22, 955550), (25, 840884), (29, 724900), (44, 477775), (50, 420442), (55, 382220), (58, 362450), (100, 210221), (110, 191110), (116, 181225), (145, 144980), (220, 95555), (275, 76444), (290, 72490), (319, 65900), (550, 38222), (580, 36245), (638, 32950), (659, 31900), (725, 28996), (1100, 19111), (1276, 16475), (1318, 15950), (1450, 14498), (1595, 13180), (2636, 7975), (2900, 7249), (3190, 6590), (3295, 6380)]