21784208

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{283}}^2$

素因数の和:591

約数の個数: 30

約数和(自身を含む): 44848134

約数和(自身を除く): 23063926

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 283, 566, 1132, 2264, 4528, 4811, 9622, 19244, 38488, 76976, 80089, 160178, 320356, 640712, 1281424, 1361513, 2723026, 5446052, 10892104, 21784208]

約数ペア:

[(1, 21784208), (2, 10892104), (4, 5446052), (8, 2723026), (16, 1361513), (17, 1281424), (34, 640712), (68, 320356), (136, 160178), (272, 80089), (283, 76976), (566, 38488), (1132, 19244), (2264, 9622), (4528, 4811)]