21453201

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{607}}^1$

素因数の和:651

約数の個数: 64

約数和(自身を含む): 42024960

約数和(自身を除く): 20571759

約数列:

[1, 3, 7, 9, 11, 17, 21, 27, 33, 51, 63, 77, 99, 119, 153, 187, 189, 231, 297, 357, 459, 561, 607, 693, 1071, 1309, 1683, 1821, 2079, 3213, 3927, 4249, 5049, 5463, 6677, 10319, 11781, 12747, 16389, 20031, 30957, 35343, 38241, 46739, 60093, 72233, 92871, 113509, 114723, 140217, 180279, 216699, 278613, 340527, 420651, 650097, 794563, 1021581, 1261953, 1950291, 2383689, 3064743, 7151067, 21453201]

約数ペア:

[(1, 21453201), (3, 7151067), (7, 3064743), (9, 2383689), (11, 1950291), (17, 1261953), (21, 1021581), (27, 794563), (33, 650097), (51, 420651), (63, 340527), (77, 278613), (99, 216699), (119, 180279), (153, 140217), (187, 114723), (189, 113509), (231, 92871), (297, 72233), (357, 60093), (459, 46739), (561, 38241), (607, 35343), (693, 30957), (1071, 20031), (1309, 16389), (1683, 12747), (1821, 11781), (2079, 10319), (3213, 6677), (3927, 5463), (4249, 5049)]