21343825

素因数分解:

$5^2\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:297

約数の個数: 24

約数和(自身を含む): 27319680

約数和(自身を除く): 5975855

約数列:

[1, 5, 25, 79, 101, 107, 395, 505, 535, 1975, 2525, 2675, 7979, 8453, 10807, 39895, 42265, 54035, 199475, 211325, 270175, 853753, 4268765, 21343825]

約数ペア:

[(1, 21343825), (5, 4268765), (25, 853753), (79, 270175), (101, 211325), (107, 199475), (395, 54035), (505, 42265), (535, 39895), (1975, 10807), (2525, 8453), (2675, 7979)]