20938830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{593}}^1$

素因数の和:721

約数の個数: 64

約数和(自身を含む): 55427328

約数和(自身を除く): 34488498

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 107, 110, 165, 214, 321, 330, 535, 593, 642, 1070, 1177, 1186, 1605, 1779, 2354, 2965, 3210, 3531, 3558, 5885, 5930, 6523, 7062, 8895, 11770, 13046, 17655, 17790, 19569, 32615, 35310, 39138, 63451, 65230, 97845, 126902, 190353, 195690, 317255, 380706, 634510, 697961, 951765, 1395922, 1903530, 2093883, 3489805, 4187766, 6979610, 10469415, 20938830]

約数ペア:

[(1, 20938830), (2, 10469415), (3, 6979610), (5, 4187766), (6, 3489805), (10, 2093883), (11, 1903530), (15, 1395922), (22, 951765), (30, 697961), (33, 634510), (55, 380706), (66, 317255), (107, 195690), (110, 190353), (165, 126902), (214, 97845), (321, 65230), (330, 63451), (535, 39138), (593, 35310), (642, 32615), (1070, 19569), (1177, 17790), (1186, 17655), (1605, 13046), (1779, 11770), (2354, 8895), (2965, 7062), (3210, 6523), (3531, 5930), (3558, 5885)]