28389179

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1087}}^1$

素因数の和:1155

約数の個数: 24

約数和(自身を含む): 36465408

約数和(自身を除く): 8076229

約数列:

[1, 7, 13, 41, 49, 91, 287, 533, 637, 1087, 2009, 3731, 7609, 14131, 26117, 44567, 53263, 98917, 311969, 579371, 692419, 2183783, 4055597, 28389179]

約数ペア:

[(1, 28389179), (7, 4055597), (13, 2183783), (41, 692419), (49, 579371), (91, 311969), (287, 98917), (533, 53263), (637, 44567), (1087, 26117), (2009, 14131), (3731, 7609)]