31191315

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1\times {\mathrm{293}}^1$

素因数の和:499

約数の個数: 32

約数和(自身を含む): 51480576

約数和(自身を除く): 20289261

約数列:

[1, 3, 5, 15, 47, 141, 151, 235, 293, 453, 705, 755, 879, 1465, 2265, 4395, 7097, 13771, 21291, 35485, 41313, 44243, 68855, 106455, 132729, 206565, 221215, 663645, 2079421, 6238263, 10397105, 31191315]

約数ペア:

[(1, 31191315), (3, 10397105), (5, 6238263), (15, 2079421), (47, 663645), (141, 221215), (151, 206565), (235, 132729), (293, 106455), (453, 68855), (705, 44243), (755, 41313), (879, 35485), (1465, 21291), (2265, 13771), (4395, 7097)]