21779556

素因数分解:

$2^2\times 3^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 52276224

約数和(自身を除く): 30496668

約数列:

[1, 2, 3, 4, 6, 12, 67, 103, 134, 201, 206, 263, 268, 309, 402, 412, 526, 618, 789, 804, 1052, 1236, 1578, 3156, 6901, 13802, 17621, 20703, 27089, 27604, 35242, 41406, 52863, 54178, 70484, 81267, 82812, 105726, 108356, 162534, 211452, 325068, 1814963, 3629926, 5444889, 7259852, 10889778, 21779556]

約数ペア:

[(1, 21779556), (2, 10889778), (3, 7259852), (4, 5444889), (6, 3629926), (12, 1814963), (67, 325068), (103, 211452), (134, 162534), (201, 108356), (206, 105726), (263, 82812), (268, 81267), (309, 70484), (402, 54178), (412, 52863), (526, 41406), (618, 35242), (789, 27604), (804, 27089), (1052, 20703), (1236, 17621), (1578, 13802), (3156, 6901)]