21171904

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{25447}}^1$

素因数の和:25472

約数の個数: 28

約数和(自身を含む): 45246544

約数和(自身を除く): 24074640

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 832, 25447, 50894, 101788, 203576, 330811, 407152, 661622, 814304, 1323244, 1628608, 2646488, 5292976, 10585952, 21171904]

約数ペア:

[(1, 21171904), (2, 10585952), (4, 5292976), (8, 2646488), (13, 1628608), (16, 1323244), (26, 814304), (32, 661622), (52, 407152), (64, 330811), (104, 203576), (208, 101788), (416, 50894), (832, 25447)]