28744227

素因数分解:

$3^5\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 46475520

約数和(自身を除く): 17731293

約数列:

[1, 3, 9, 23, 27, 37, 69, 81, 111, 139, 207, 243, 333, 417, 621, 851, 999, 1251, 1863, 2553, 2997, 3197, 3753, 5143, 5589, 7659, 8991, 9591, 11259, 15429, 22977, 28773, 33777, 46287, 68931, 86319, 118289, 138861, 206793, 258957, 354867, 416583, 776871, 1064601, 1249749, 3193803, 9581409, 28744227]

約数ペア:

[(1, 28744227), (3, 9581409), (9, 3193803), (23, 1249749), (27, 1064601), (37, 776871), (69, 416583), (81, 354867), (111, 258957), (139, 206793), (207, 138861), (243, 118289), (333, 86319), (417, 68931), (621, 46287), (851, 33777), (999, 28773), (1251, 22977), (1863, 15429), (2553, 11259), (2997, 9591), (3197, 8991), (3753, 7659), (5143, 5589)]