21683403

素因数分解:

$3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2441}}^1$

素因数の和:2504

約数の個数: 32

約数和(自身を含む): 37509120

約数和(自身を除く): 15825717

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 141, 189, 329, 423, 987, 1269, 2441, 2961, 7323, 8883, 17087, 21969, 51261, 65907, 114727, 153783, 344181, 461349, 803089, 1032543, 2409267, 3097629, 7227801, 21683403]

約数ペア:

[(1, 21683403), (3, 7227801), (7, 3097629), (9, 2409267), (21, 1032543), (27, 803089), (47, 461349), (63, 344181), (141, 153783), (189, 114727), (329, 65907), (423, 51261), (987, 21969), (1269, 17087), (2441, 8883), (2961, 7323)]