4008641

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:94

約数の個数: 32

約数和(自身を含む): 5376000

約数和(自身を除く): 1367359

約数列:

[1, 7, 13, 29, 31, 49, 91, 203, 217, 343, 377, 403, 637, 899, 1421, 1519, 2639, 2821, 4459, 6293, 9947, 10633, 11687, 18473, 19747, 44051, 81809, 129311, 138229, 308357, 572663, 4008641]

約数ペア:

[(1, 4008641), (7, 572663), (13, 308357), (29, 138229), (31, 129311), (49, 81809), (91, 44051), (203, 19747), (217, 18473), (343, 11687), (377, 10633), (403, 9947), (637, 6293), (899, 4459), (1421, 2821), (1519, 2639)]