21783625

素因数分解:

$5^3\times {\mathrm{229}}^1\times {\mathrm{761}}^1$

素因数の和:1005

約数の個数: 16

約数和(自身を含む): 27340560

約数和(自身を除く): 5556935

約数列:

[1, 5, 25, 125, 229, 761, 1145, 3805, 5725, 19025, 28625, 95125, 174269, 871345, 4356725, 21783625]

約数ペア:

[(1, 21783625), (5, 4356725), (25, 871345), (125, 174269), (229, 95125), (761, 28625), (1145, 19025), (3805, 5725)]