204420195

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{648953}}^1$

素因数の和:648971

約数の個数: 24

約数和(自身を含む): 404947296

約数和(自身を除く): 200527101

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 648953, 1946859, 3244765, 4542671, 5840577, 9734295, 13628013, 22713355, 29202885, 40884039, 68140065, 204420195]

約数ペア:

[(1, 204420195), (3, 68140065), (5, 40884039), (7, 29202885), (9, 22713355), (15, 13628013), (21, 9734295), (35, 5840577), (45, 4542671), (63, 3244765), (105, 1946859), (315, 648953)]