21700496

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{653}}^1$

素因数の和:759

約数の個数: 40

約数和(自身を含む): 44116224

約数和(自身を除く): 22415728

約数列:

[1, 2, 4, 8, 16, 31, 62, 67, 124, 134, 248, 268, 496, 536, 653, 1072, 1306, 2077, 2612, 4154, 5224, 8308, 10448, 16616, 20243, 33232, 40486, 43751, 80972, 87502, 161944, 175004, 323888, 350008, 700016, 1356281, 2712562, 5425124, 10850248, 21700496]

約数ペア:

[(1, 21700496), (2, 10850248), (4, 5425124), (8, 2712562), (16, 1356281), (31, 700016), (62, 350008), (67, 323888), (124, 175004), (134, 161944), (248, 87502), (268, 80972), (496, 43751), (536, 40486), (653, 33232), (1072, 20243), (1306, 16616), (2077, 10448), (2612, 8308), (4154, 5224)]