19699305

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 32659200

約数和(自身を除く): 12959895

約数列:

[1, 3, 5, 15, 53, 71, 159, 213, 265, 349, 355, 795, 1047, 1065, 1745, 3763, 5235, 11289, 18497, 18815, 24779, 55491, 56445, 74337, 92485, 123895, 277455, 371685, 1313287, 3939861, 6566435, 19699305]

約数ペア:

[(1, 19699305), (3, 6566435), (5, 3939861), (15, 1313287), (53, 371685), (71, 277455), (159, 123895), (213, 92485), (265, 74337), (349, 56445), (355, 55491), (795, 24779), (1047, 18815), (1065, 18497), (1745, 11289), (3763, 5235)]