71131557

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1\times {\mathrm{179}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 110592000

約数和(自身を除く): 39460443

約数列:

[1, 3, 7, 21, 127, 149, 179, 381, 447, 537, 889, 1043, 1253, 2667, 3129, 3759, 18923, 22733, 26671, 56769, 68199, 80013, 132461, 159131, 186697, 397383, 477393, 560091, 3387217, 10161651, 23710519, 71131557]

約数ペア:

[(1, 71131557), (3, 23710519), (7, 10161651), (21, 3387217), (127, 560091), (149, 477393), (179, 397383), (381, 186697), (447, 159131), (537, 132461), (889, 80013), (1043, 68199), (1253, 56769), (2667, 26671), (3129, 22733), (3759, 18923)]