389714871

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{75133}}^1$

素因数の和:75175

約数の個数: 32

約数和(自身を含む): 673200640

約数和(自身を除く): 283485769

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 5187, 75133, 225399, 525931, 976729, 1427527, 1577793, 2930187, 4282581, 6837103, 9992689, 18557851, 20511309, 29978067, 55673553, 129904957, 389714871]

約数ペア:

[(1, 389714871), (3, 129904957), (7, 55673553), (13, 29978067), (19, 20511309), (21, 18557851), (39, 9992689), (57, 6837103), (91, 4282581), (133, 2930187), (247, 1577793), (273, 1427527), (399, 976729), (741, 525931), (1729, 225399), (5187, 75133)]