21698082

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{337}}^1$

素因数の和:432

約数の個数: 72

約数和(自身を含む): 55601676

約数和(自身を除く): 33903594

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 73, 98, 126, 146, 147, 219, 294, 337, 438, 441, 511, 657, 674, 882, 1011, 1022, 1314, 1533, 2022, 2359, 3033, 3066, 3577, 4599, 4718, 6066, 7077, 7154, 9198, 10731, 14154, 16513, 21231, 21462, 24601, 32193, 33026, 42462, 49202, 49539, 64386, 73803, 99078, 147606, 148617, 172207, 221409, 297234, 344414, 442818, 516621, 1033242, 1205449, 1549863, 2410898, 3099726, 3616347, 7232694, 10849041, 21698082]

約数ペア:

[(1, 21698082), (2, 10849041), (3, 7232694), (6, 3616347), (7, 3099726), (9, 2410898), (14, 1549863), (18, 1205449), (21, 1033242), (42, 516621), (49, 442818), (63, 344414), (73, 297234), (98, 221409), (126, 172207), (146, 148617), (147, 147606), (219, 99078), (294, 73803), (337, 64386), (438, 49539), (441, 49202), (511, 42462), (657, 33026), (674, 32193), (882, 24601), (1011, 21462), (1022, 21231), (1314, 16513), (1533, 14154), (2022, 10731), (2359, 9198), (3033, 7154), (3066, 7077), (3577, 6066), (4599, 4718)]