18129727

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{353}}^1$

素因数の和:423

約数の個数: 32

約数和(自身を含む): 24468480

約数和(自身を除く): 6338753

約数列:

[1, 7, 11, 23, 29, 77, 161, 203, 253, 319, 353, 667, 1771, 2233, 2471, 3883, 4669, 7337, 8119, 10237, 27181, 51359, 56833, 71659, 89309, 112607, 235451, 625163, 788249, 1648157, 2589961, 18129727]

約数ペア:

[(1, 18129727), (7, 2589961), (11, 1648157), (23, 788249), (29, 625163), (77, 235451), (161, 112607), (203, 89309), (253, 71659), (319, 56833), (353, 51359), (667, 27181), (1771, 10237), (2233, 8119), (2471, 7337), (3883, 4669)]