21803474

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:303

約数の個数: 48

約数和(自身を含む): 41955648

約数和(自身を除く): 20152174

約数列:

[1, 2, 7, 11, 14, 22, 61, 77, 121, 122, 154, 211, 242, 422, 427, 671, 847, 854, 1342, 1477, 1694, 2321, 2954, 4642, 4697, 7381, 9394, 12871, 14762, 16247, 25531, 25742, 32494, 51062, 51667, 90097, 103334, 141581, 178717, 180194, 283162, 357434, 991067, 1557391, 1982134, 3114782, 10901737, 21803474]

約数ペア:

[(1, 21803474), (2, 10901737), (7, 3114782), (11, 1982134), (14, 1557391), (22, 991067), (61, 357434), (77, 283162), (121, 180194), (122, 178717), (154, 141581), (211, 103334), (242, 90097), (422, 51667), (427, 51062), (671, 32494), (847, 25742), (854, 25531), (1342, 16247), (1477, 14762), (1694, 12871), (2321, 9394), (2954, 7381), (4642, 4697)]