28839811

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{613}}^1$

素因数の和:691

約数の個数: 32

約数和(自身を含む): 39610368

約数和(自身を除く): 10770557

約数列:

[1, 7, 11, 13, 47, 77, 91, 143, 329, 517, 611, 613, 1001, 3619, 4277, 4291, 6721, 6743, 7969, 28811, 47047, 47201, 55783, 87659, 201677, 316921, 374543, 613613, 2218447, 2621801, 4119973, 28839811]

約数ペア:

[(1, 28839811), (7, 4119973), (11, 2621801), (13, 2218447), (47, 613613), (77, 374543), (91, 316921), (143, 201677), (329, 87659), (517, 55783), (611, 47201), (613, 47047), (1001, 28811), (3619, 7969), (4277, 6743), (4291, 6721)]