20705895

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{21911}}^1$

素因数の和:21932

約数の個数: 32

約数和(自身を含む): 42071040

約数和(自身を除く): 21365145

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 21911, 65733, 109555, 153377, 197199, 328665, 460131, 591597, 766885, 985995, 1380393, 2300655, 2957985, 4141179, 6901965, 20705895]

約数ペア:

[(1, 20705895), (3, 6901965), (5, 4141179), (7, 2957985), (9, 2300655), (15, 1380393), (21, 985995), (27, 766885), (35, 591597), (45, 460131), (63, 328665), (105, 197199), (135, 153377), (189, 109555), (315, 65733), (945, 21911)]