18854547

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:259

約数の個数: 32

約数和(自身を含む): 27869184

約数和(自身を除く): 9014637

約数列:

[1, 3, 17, 41, 51, 71, 123, 127, 213, 381, 697, 1207, 2091, 2159, 2911, 3621, 5207, 6477, 8733, 9017, 15621, 27051, 49487, 88519, 148461, 153289, 265557, 369697, 459867, 1109091, 6284849, 18854547]

約数ペア:

[(1, 18854547), (3, 6284849), (17, 1109091), (41, 459867), (51, 369697), (71, 265557), (123, 153289), (127, 148461), (213, 88519), (381, 49487), (697, 27051), (1207, 15621), (2091, 9017), (2159, 8733), (2911, 6477), (3621, 5207)]