18992584

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:230

約数の個数: 64

約数和(自身を含む): 40803840

約数和(自身を除く): 21811256

約数列:

[1, 2, 4, 8, 13, 26, 31, 43, 52, 62, 86, 104, 124, 137, 172, 248, 274, 344, 403, 548, 559, 806, 1096, 1118, 1333, 1612, 1781, 2236, 2666, 3224, 3562, 4247, 4472, 5332, 5891, 7124, 8494, 10664, 11782, 14248, 16988, 17329, 23564, 33976, 34658, 47128, 55211, 69316, 76583, 110422, 138632, 153166, 182621, 220844, 306332, 365242, 441688, 612664, 730484, 1460968, 2374073, 4748146, 9496292, 18992584]

約数ペア:

[(1, 18992584), (2, 9496292), (4, 4748146), (8, 2374073), (13, 1460968), (26, 730484), (31, 612664), (43, 441688), (52, 365242), (62, 306332), (86, 220844), (104, 182621), (124, 153166), (137, 138632), (172, 110422), (248, 76583), (274, 69316), (344, 55211), (403, 47128), (548, 34658), (559, 33976), (806, 23564), (1096, 17329), (1118, 16988), (1333, 14248), (1612, 11782), (1781, 10664), (2236, 8494), (2666, 7124), (3224, 5891), (3562, 5332), (4247, 4472)]