21219228

素因数分解:

$2^2\times 3^2\times {\mathrm{691}}^1\times {\mathrm{853}}^1$

素因数の和:1554

約数の個数: 36

約数和(自身を含む): 53778088

約数和(自身を除く): 32558860

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 691, 853, 1382, 1706, 2073, 2559, 2764, 3412, 4146, 5118, 6219, 7677, 8292, 10236, 12438, 15354, 24876, 30708, 589423, 1178846, 1768269, 2357692, 3536538, 5304807, 7073076, 10609614, 21219228]

約数ペア:

[(1, 21219228), (2, 10609614), (3, 7073076), (4, 5304807), (6, 3536538), (9, 2357692), (12, 1768269), (18, 1178846), (36, 589423), (691, 30708), (853, 24876), (1382, 15354), (1706, 12438), (2073, 10236), (2559, 8292), (2764, 7677), (3412, 6219), (4146, 5118)]