211225

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:105

約数の個数: 24

約数和(自身を含む): 321408

約数和(自身を除く): 110183

約数列:

[1, 5, 7, 17, 25, 35, 71, 85, 119, 175, 355, 425, 497, 595, 1207, 1775, 2485, 2975, 6035, 8449, 12425, 30175, 42245, 211225]

約数ペア:

[(1, 211225), (5, 42245), (7, 30175), (17, 12425), (25, 8449), (35, 6035), (71, 2975), (85, 2485), (119, 1775), (175, 1207), (355, 595), (425, 497)]