21944225

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:401

約数の個数: 24

約数和(自身を含む): 28331520

約数和(自身を除く): 6387295

約数列:

[1, 5, 25, 41, 79, 205, 271, 395, 1025, 1355, 1975, 3239, 6775, 11111, 16195, 21409, 55555, 80975, 107045, 277775, 535225, 877769, 4388845, 21944225]

約数ペア:

[(1, 21944225), (5, 4388845), (25, 877769), (41, 535225), (79, 277775), (205, 107045), (271, 80975), (395, 55555), (1025, 21409), (1355, 16195), (1975, 11111), (3239, 6775)]