28095291

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 48484800

約数和(自身を除く): 20389509

約数列:

[1, 3, 7, 9, 21, 41, 63, 73, 123, 149, 219, 287, 369, 447, 511, 657, 861, 1043, 1341, 1533, 2583, 2993, 3129, 4599, 6109, 8979, 9387, 10877, 18327, 20951, 26937, 32631, 42763, 54981, 62853, 76139, 97893, 128289, 188559, 228417, 384867, 445957, 685251, 1337871, 3121699, 4013613, 9365097, 28095291]

約数ペア:

[(1, 28095291), (3, 9365097), (7, 4013613), (9, 3121699), (21, 1337871), (41, 685251), (63, 445957), (73, 384867), (123, 228417), (149, 188559), (219, 128289), (287, 97893), (369, 76139), (447, 62853), (511, 54981), (657, 42763), (861, 32631), (1043, 26937), (1341, 20951), (1533, 18327), (2583, 10877), (2993, 9387), (3129, 8979), (4599, 6109)]