2811915

素因数分解:

$3^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:201

約数の個数: 40

約数和(自身を含む): 5174928

約数和(自身を除く): 2363013

約数列:

[1, 3, 5, 9, 15, 27, 45, 53, 81, 131, 135, 159, 265, 393, 405, 477, 655, 795, 1179, 1431, 1965, 2385, 3537, 4293, 5895, 6943, 7155, 10611, 17685, 20829, 21465, 34715, 53055, 62487, 104145, 187461, 312435, 562383, 937305, 2811915]

約数ペア:

[(1, 2811915), (3, 937305), (5, 562383), (9, 312435), (15, 187461), (27, 104145), (45, 62487), (53, 53055), (81, 34715), (131, 21465), (135, 20829), (159, 17685), (265, 10611), (393, 7155), (405, 6943), (477, 5895), (655, 4293), (795, 3537), (1179, 2385), (1431, 1965)]