217783128

素因数分解:

$2^3\times 3^1\times {\mathrm{71}}^1\times {\mathrm{127807}}^1$

素因数の和:127887

約数の個数: 32

約数和(自身を含む): 552130560

約数和(自身を除く): 334347432

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 71, 142, 213, 284, 426, 568, 852, 1704, 127807, 255614, 383421, 511228, 766842, 1022456, 1533684, 3067368, 9074297, 18148594, 27222891, 36297188, 54445782, 72594376, 108891564, 217783128]

約数ペア:

[(1, 217783128), (2, 108891564), (3, 72594376), (4, 54445782), (6, 36297188), (8, 27222891), (12, 18148594), (24, 9074297), (71, 3067368), (142, 1533684), (213, 1022456), (284, 766842), (426, 511228), (568, 383421), (852, 255614), (1704, 127807)]