31671081

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1583}}^1$

素因数の和:1627

約数の個数: 40

約数和(自身を含む): 53665920

約数和(自身を除く): 21994839

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 81, 117, 171, 247, 351, 513, 741, 1053, 1539, 1583, 2223, 4749, 6669, 14247, 20007, 20579, 30077, 42741, 61737, 90231, 128223, 185211, 270693, 391001, 555633, 812079, 1173003, 1666899, 2436237, 3519009, 10557027, 31671081]

約数ペア:

[(1, 31671081), (3, 10557027), (9, 3519009), (13, 2436237), (19, 1666899), (27, 1173003), (39, 812079), (57, 555633), (81, 391001), (117, 270693), (171, 185211), (247, 128223), (351, 90231), (513, 61737), (741, 42741), (1053, 30077), (1539, 20579), (1583, 20007), (2223, 14247), (4749, 6669)]