21643028

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{97}}^1\times {\mathrm{461}}^1$

素因数の和:584

約数の個数: 36

約数和(自身を含む): 42151956

約数和(自身を除く): 20508928

約数列:

[1, 2, 4, 11, 22, 44, 97, 121, 194, 242, 388, 461, 484, 922, 1067, 1844, 2134, 4268, 5071, 10142, 11737, 20284, 23474, 44717, 46948, 55781, 89434, 111562, 178868, 223124, 491887, 983774, 1967548, 5410757, 10821514, 21643028]

約数ペア:

[(1, 21643028), (2, 10821514), (4, 5410757), (11, 1967548), (22, 983774), (44, 491887), (97, 223124), (121, 178868), (194, 111562), (242, 89434), (388, 55781), (461, 46948), (484, 44717), (922, 23474), (1067, 20284), (1844, 11737), (2134, 10142), (4268, 5071)]