21256925

素因数分解:

$5^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:365

約数の個数: 24

約数和(自身を含む): 27379200

約数和(自身を除く): 6122275

約数列:

[1, 5, 25, 47, 79, 229, 235, 395, 1145, 1175, 1975, 3713, 5725, 10763, 18091, 18565, 53815, 90455, 92825, 269075, 452275, 850277, 4251385, 21256925]

約数ペア:

[(1, 21256925), (5, 4251385), (25, 850277), (47, 452275), (79, 269075), (229, 92825), (235, 90455), (395, 53815), (1145, 18565), (1175, 18091), (1975, 10763), (3713, 5725)]