21963655

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{653}}^1$

素因数の和:727

約数の個数: 24

約数和(自身を含む): 31172256

約数和(自身を除く): 9208601

約数列:

[1, 5, 7, 31, 35, 155, 217, 653, 961, 1085, 3265, 4571, 4805, 6727, 20243, 22855, 33635, 101215, 141701, 627533, 708505, 3137665, 4392731, 21963655]

約数ペア:

[(1, 21963655), (5, 4392731), (7, 3137665), (31, 708505), (35, 627533), (155, 141701), (217, 101215), (653, 33635), (961, 22855), (1085, 20243), (3265, 6727), (4571, 4805)]