2557737

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1$

素因数の和:379

約数の個数: 40

約数和(自身を含む): 4716096

約数和(自身を除く): 2158359

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 273, 347, 351, 567, 819, 1041, 1053, 2429, 2457, 3123, 4511, 7287, 7371, 9369, 13533, 21861, 28107, 31577, 40599, 65583, 94731, 121797, 196749, 284193, 365391, 852579, 2557737]

約数ペア:

[(1, 2557737), (3, 852579), (7, 365391), (9, 284193), (13, 196749), (21, 121797), (27, 94731), (39, 65583), (63, 40599), (81, 31577), (91, 28107), (117, 21861), (189, 13533), (273, 9369), (347, 7371), (351, 7287), (567, 4511), (819, 3123), (1041, 2457), (1053, 2429)]