21675357

素因数分解:

$3^7\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1$

素因数の和:102

約数の個数: 64

約数和(自身を含む): 38257920

約数和(自身を除く): 16582563

約数列:

[1, 3, 9, 11, 17, 27, 33, 51, 53, 81, 99, 153, 159, 187, 243, 297, 459, 477, 561, 583, 729, 891, 901, 1377, 1431, 1683, 1749, 2187, 2673, 2703, 4131, 4293, 5049, 5247, 8019, 8109, 9911, 12393, 12879, 15147, 15741, 24057, 24327, 29733, 37179, 38637, 45441, 47223, 72981, 89199, 115911, 136323, 141669, 218943, 267597, 408969, 425007, 656829, 802791, 1275021, 1970487, 2408373, 7225119, 21675357]

約数ペア:

[(1, 21675357), (3, 7225119), (9, 2408373), (11, 1970487), (17, 1275021), (27, 802791), (33, 656829), (51, 425007), (53, 408969), (81, 267597), (99, 218943), (153, 141669), (159, 136323), (187, 115911), (243, 89199), (297, 72981), (459, 47223), (477, 45441), (561, 38637), (583, 37179), (729, 29733), (891, 24327), (901, 24057), (1377, 15741), (1431, 15147), (1683, 12879), (1749, 12393), (2187, 9911), (2673, 8109), (2703, 8019), (4131, 5247), (4293, 5049)]