27768447

素因数分解:

$3^3\times 7^2\times {\mathrm{139}}^1\times {\mathrm{151}}^1$

素因数の和:313

約数の個数: 48

約数和(自身を含む): 48518400

約数和(自身を除く): 20749953

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 139, 147, 151, 189, 417, 441, 453, 973, 1057, 1251, 1323, 1359, 2919, 3171, 3753, 4077, 6811, 7399, 8757, 9513, 20433, 20989, 22197, 26271, 28539, 61299, 62967, 66591, 146923, 183897, 188901, 199773, 440769, 566703, 1028461, 1322307, 3085383, 3966921, 9256149, 27768447]

約数ペア:

[(1, 27768447), (3, 9256149), (7, 3966921), (9, 3085383), (21, 1322307), (27, 1028461), (49, 566703), (63, 440769), (139, 199773), (147, 188901), (151, 183897), (189, 146923), (417, 66591), (441, 62967), (453, 61299), (973, 28539), (1057, 26271), (1251, 22197), (1323, 20989), (1359, 20433), (2919, 9513), (3171, 8757), (3753, 7399), (4077, 6811)]