389638473

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{487}}^1\times {\mathrm{1229}}^1$

素因数の和:1757

約数の個数: 32

約数和(自身を含む): 614645760

約数和(自身を除く): 225007287

約数列:

[1, 3, 7, 21, 31, 93, 217, 487, 651, 1229, 1461, 3409, 3687, 8603, 10227, 15097, 25809, 38099, 45291, 105679, 114297, 266693, 317037, 598523, 800079, 1795569, 4189661, 12568983, 18554213, 55662639, 129879491, 389638473]

約数ペア:

[(1, 389638473), (3, 129879491), (7, 55662639), (21, 18554213), (31, 12568983), (93, 4189661), (217, 1795569), (487, 800079), (651, 598523), (1229, 317037), (1461, 266693), (3409, 114297), (3687, 105679), (8603, 45291), (10227, 38099), (15097, 25809)]