28911897

素因数分解:

$3^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{739}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 51717120

約数和(自身を除く): 22805223

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 207, 243, 483, 567, 621, 739, 1449, 1701, 1863, 2217, 4347, 5173, 5589, 6651, 13041, 15519, 16997, 19953, 39123, 46557, 50991, 59859, 118979, 139671, 152973, 179577, 356937, 419013, 458919, 1070811, 1257039, 1376757, 3212433, 4130271, 9637299, 28911897]

約数ペア:

[(1, 28911897), (3, 9637299), (7, 4130271), (9, 3212433), (21, 1376757), (23, 1257039), (27, 1070811), (63, 458919), (69, 419013), (81, 356937), (161, 179577), (189, 152973), (207, 139671), (243, 118979), (483, 59859), (567, 50991), (621, 46557), (739, 39123), (1449, 19953), (1701, 16997), (1863, 15519), (2217, 13041), (4347, 6651), (5173, 5589)]