21574405

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:285

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 7455995

約数列:

[1, 5, 19, 29, 41, 95, 145, 191, 205, 551, 779, 955, 1189, 2755, 3629, 3895, 5539, 5945, 7831, 18145, 22591, 27695, 39155, 105241, 112955, 148789, 227099, 526205, 743945, 1135495, 4314881, 21574405]

約数ペア:

[(1, 21574405), (5, 4314881), (19, 1135495), (29, 743945), (41, 526205), (95, 227099), (145, 148789), (191, 112955), (205, 105241), (551, 39155), (779, 27695), (955, 22591), (1189, 18145), (2755, 7831), (3629, 5945), (3895, 5539)]