21020364

素因数分解:

$2^2\times 3^3\times {\mathrm{17}}^1\times {\mathrm{107}}^2$

素因数の和:244

約数の個数: 72

約数和(自身を含む): 58247280

約数和(自身を除く): 37226916

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 51, 54, 68, 102, 107, 108, 153, 204, 214, 306, 321, 428, 459, 612, 642, 918, 963, 1284, 1819, 1836, 1926, 2889, 3638, 3852, 5457, 5778, 7276, 10914, 11449, 11556, 16371, 21828, 22898, 32742, 34347, 45796, 49113, 65484, 68694, 98226, 103041, 137388, 194633, 196452, 206082, 309123, 389266, 412164, 583899, 618246, 778532, 1167798, 1236492, 1751697, 2335596, 3503394, 5255091, 7006788, 10510182, 21020364]

約数ペア:

[(1, 21020364), (2, 10510182), (3, 7006788), (4, 5255091), (6, 3503394), (9, 2335596), (12, 1751697), (17, 1236492), (18, 1167798), (27, 778532), (34, 618246), (36, 583899), (51, 412164), (54, 389266), (68, 309123), (102, 206082), (107, 196452), (108, 194633), (153, 137388), (204, 103041), (214, 98226), (306, 68694), (321, 65484), (428, 49113), (459, 45796), (612, 34347), (642, 32742), (918, 22898), (963, 21828), (1284, 16371), (1819, 11556), (1836, 11449), (1926, 10914), (2889, 7276), (3638, 5778), (3852, 5457)]