18501628

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{839}}^1$

素因数の和:1029

約数の個数: 24

約数和(自身を含む): 33516000

約数和(自身を除く): 15014372

約数列:

[1, 2, 4, 37, 74, 148, 149, 298, 596, 839, 1678, 3356, 5513, 11026, 22052, 31043, 62086, 124172, 125011, 250022, 500044, 4625407, 9250814, 18501628]

約数ペア:

[(1, 18501628), (2, 9250814), (4, 4625407), (37, 500044), (74, 250022), (148, 125011), (149, 124172), (298, 62086), (596, 31043), (839, 22052), (1678, 11026), (3356, 5513)]