21493956

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{113}}^1\times {\mathrm{131}}^1$

素因数の和:273

約数の個数: 72

約数和(自身を含む): 56038752

約数和(自身を除く): 34544796

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 113, 121, 131, 132, 226, 242, 262, 339, 363, 393, 452, 484, 524, 678, 726, 786, 1243, 1356, 1441, 1452, 1572, 2486, 2882, 3729, 4323, 4972, 5764, 7458, 8646, 13673, 14803, 14916, 15851, 17292, 27346, 29606, 31702, 41019, 44409, 47553, 54692, 59212, 63404, 82038, 88818, 95106, 162833, 164076, 177636, 190212, 325666, 488499, 651332, 976998, 1791163, 1953996, 3582326, 5373489, 7164652, 10746978, 21493956]

約数ペア:

[(1, 21493956), (2, 10746978), (3, 7164652), (4, 5373489), (6, 3582326), (11, 1953996), (12, 1791163), (22, 976998), (33, 651332), (44, 488499), (66, 325666), (113, 190212), (121, 177636), (131, 164076), (132, 162833), (226, 95106), (242, 88818), (262, 82038), (339, 63404), (363, 59212), (393, 54692), (452, 47553), (484, 44409), (524, 41019), (678, 31702), (726, 29606), (786, 27346), (1243, 17292), (1356, 15851), (1441, 14916), (1452, 14803), (1572, 13673), (2486, 8646), (2882, 7458), (3729, 5764), (4323, 4972)]