20855744

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3581}}^1$

素因数の和:3613

約数の個数: 56

約数和(自身を含む): 50950368

約数和(自身を除く): 30094624

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 182, 208, 224, 364, 416, 448, 728, 832, 1456, 2912, 3581, 5824, 7162, 14324, 25067, 28648, 46553, 50134, 57296, 93106, 100268, 114592, 186212, 200536, 229184, 325871, 372424, 401072, 651742, 744848, 802144, 1303484, 1489696, 1604288, 2606968, 2979392, 5213936, 10427872, 20855744]

約数ペア:

[(1, 20855744), (2, 10427872), (4, 5213936), (7, 2979392), (8, 2606968), (13, 1604288), (14, 1489696), (16, 1303484), (26, 802144), (28, 744848), (32, 651742), (52, 401072), (56, 372424), (64, 325871), (91, 229184), (104, 200536), (112, 186212), (182, 114592), (208, 100268), (224, 93106), (364, 57296), (416, 50134), (448, 46553), (728, 28648), (832, 25067), (1456, 14324), (2912, 7162), (3581, 5824)]