19786976

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{839}}^1$

素因数の和:927

約数の個数: 48

約数和(自身を含む): 43182720

約数和(自身を除く): 23395744

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 67, 88, 134, 176, 268, 352, 536, 737, 839, 1072, 1474, 1678, 2144, 2948, 3356, 5896, 6712, 9229, 11792, 13424, 18458, 23584, 26848, 36916, 56213, 73832, 112426, 147664, 224852, 295328, 449704, 618343, 899408, 1236686, 1798816, 2473372, 4946744, 9893488, 19786976]

約数ペア:

[(1, 19786976), (2, 9893488), (4, 4946744), (8, 2473372), (11, 1798816), (16, 1236686), (22, 899408), (32, 618343), (44, 449704), (67, 295328), (88, 224852), (134, 147664), (176, 112426), (268, 73832), (352, 56213), (536, 36916), (737, 26848), (839, 23584), (1072, 18458), (1474, 13424), (1678, 11792), (2144, 9229), (2948, 6712), (3356, 5896)]