21396256

素因数分解:

$2^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4153}}^1$

素因数の和:4193

約数の個数: 48

約数和(自身を含む): 50246784

約数和(自身を除く): 28850528

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 56, 92, 112, 161, 184, 224, 322, 368, 644, 736, 1288, 2576, 4153, 5152, 8306, 16612, 29071, 33224, 58142, 66448, 95519, 116284, 132896, 191038, 232568, 382076, 465136, 668633, 764152, 930272, 1337266, 1528304, 2674532, 3056608, 5349064, 10698128, 21396256]

約数ペア:

[(1, 21396256), (2, 10698128), (4, 5349064), (7, 3056608), (8, 2674532), (14, 1528304), (16, 1337266), (23, 930272), (28, 764152), (32, 668633), (46, 465136), (56, 382076), (92, 232568), (112, 191038), (161, 132896), (184, 116284), (224, 95519), (322, 66448), (368, 58142), (644, 33224), (736, 29071), (1288, 16612), (2576, 8306), (4153, 5152)]