18890553

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{223}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 29417472

約数和(自身を除く): 10526919

約数列:

[1, 3, 11, 17, 33, 51, 151, 187, 223, 453, 561, 669, 1661, 2453, 2567, 3791, 4983, 7359, 7701, 11373, 28237, 33673, 41701, 84711, 101019, 125103, 370403, 572441, 1111209, 1717323, 6296851, 18890553]

約数ペア:

[(1, 18890553), (3, 6296851), (11, 1717323), (17, 1111209), (33, 572441), (51, 370403), (151, 125103), (187, 101019), (223, 84711), (453, 41701), (561, 33673), (669, 28237), (1661, 11373), (2453, 7701), (2567, 7359), (3791, 4983)]