18707997

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{743}}^1$

素因数の和:873

約数の個数: 32

約数和(自身を含む): 31426560

約数和(自身を除く): 12718563

約数列:

[1, 3, 7, 11, 21, 33, 77, 109, 231, 327, 743, 763, 1199, 2229, 2289, 3597, 5201, 8173, 8393, 15603, 24519, 25179, 57211, 80987, 171633, 242961, 566909, 890857, 1700727, 2672571, 6235999, 18707997]

約数ペア:

[(1, 18707997), (3, 6235999), (7, 2672571), (11, 1700727), (21, 890857), (33, 566909), (77, 242961), (109, 171633), (231, 80987), (327, 57211), (743, 25179), (763, 24519), (1199, 15603), (2229, 8393), (2289, 8173), (3597, 5201)]