30721691

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{653}}^1$

素因数の和:731

約数の個数: 32

約数和(自身を含む): 42190848

約数和(自身を除く): 11469157

約数列:

[1, 7, 11, 13, 47, 77, 91, 143, 329, 517, 611, 653, 1001, 3619, 4277, 4571, 6721, 7183, 8489, 30691, 47047, 50281, 59423, 93379, 214837, 337601, 398983, 653653, 2363207, 2792881, 4388813, 30721691]

約数ペア:

[(1, 30721691), (7, 4388813), (11, 2792881), (13, 2363207), (47, 653653), (77, 398983), (91, 337601), (143, 214837), (329, 93379), (517, 59423), (611, 50281), (653, 47047), (1001, 30691), (3619, 8489), (4277, 7183), (4571, 6721)]