18984016

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{653}}^1$

素因数の和:763

約数の個数: 40

約数和(自身を含む): 38926080

約数和(自身を除く): 19942064

約数列:

[1, 2, 4, 8, 16, 23, 46, 79, 92, 158, 184, 316, 368, 632, 653, 1264, 1306, 1817, 2612, 3634, 5224, 7268, 10448, 14536, 15019, 29072, 30038, 51587, 60076, 103174, 120152, 206348, 240304, 412696, 825392, 1186501, 2373002, 4746004, 9492008, 18984016]

約数ペア:

[(1, 18984016), (2, 9492008), (4, 4746004), (8, 2373002), (16, 1186501), (23, 825392), (46, 412696), (79, 240304), (92, 206348), (158, 120152), (184, 103174), (316, 60076), (368, 51587), (632, 30038), (653, 29072), (1264, 15019), (1306, 14536), (1817, 10448), (2612, 7268), (3634, 5224)]