21850540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{26647}}^1$

素因数の和:26697

約数の個数: 24

約数和(自身を含む): 47007072

約数和(自身を除く): 25156532

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 26647, 53294, 106588, 133235, 266470, 532940, 1092527, 2185054, 4370108, 5462635, 10925270, 21850540]

約数ペア:

[(1, 21850540), (2, 10925270), (4, 5462635), (5, 4370108), (10, 2185054), (20, 1092527), (41, 532940), (82, 266470), (164, 133235), (205, 106588), (410, 53294), (820, 26647)]