21967533

素因数分解:

$3^2\times 7^2\times {\mathrm{109}}^1\times {\mathrm{457}}^1$

素因数の和:586

約数の個数: 36

約数和(自身を含む): 37331580

約数和(自身を除く): 15364047

約数列:

[1, 3, 7, 9, 21, 49, 63, 109, 147, 327, 441, 457, 763, 981, 1371, 2289, 3199, 4113, 5341, 6867, 9597, 16023, 22393, 28791, 48069, 49813, 67179, 149439, 201537, 348691, 448317, 1046073, 2440837, 3138219, 7322511, 21967533]

約数ペア:

[(1, 21967533), (3, 7322511), (7, 3138219), (9, 2440837), (21, 1046073), (49, 448317), (63, 348691), (109, 201537), (147, 149439), (327, 67179), (441, 49813), (457, 48069), (763, 28791), (981, 22393), (1371, 16023), (2289, 9597), (3199, 6867), (4113, 5341)]