28147413

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:194

約数の個数: 48

約数和(自身を含む): 46026816

約数和(自身を除く): 17879403

約数列:

[1, 3, 7, 21, 43, 49, 61, 73, 129, 147, 183, 219, 301, 427, 511, 903, 1281, 1533, 2107, 2623, 2989, 3139, 3577, 4453, 6321, 7869, 8967, 9417, 10731, 13359, 18361, 21973, 31171, 55083, 65919, 93513, 128527, 153811, 191479, 218197, 385581, 461433, 574437, 654591, 1340353, 4021059, 9382471, 28147413]

約数ペア:

[(1, 28147413), (3, 9382471), (7, 4021059), (21, 1340353), (43, 654591), (49, 574437), (61, 461433), (73, 385581), (129, 218197), (147, 191479), (183, 153811), (219, 128527), (301, 93513), (427, 65919), (511, 55083), (903, 31171), (1281, 21973), (1533, 18361), (2107, 13359), (2623, 10731), (2989, 9417), (3139, 8967), (3577, 7869), (4453, 6321)]