201390721

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{239}}^1$

素因数の和:433

約数の個数: 32

約数和(自身を含む): 250629120

約数和(自身を除く): 49238399

約数列:

[1, 7, 17, 73, 97, 119, 239, 511, 679, 1241, 1649, 1673, 4063, 7081, 8687, 11543, 17447, 23183, 28441, 49567, 120377, 122129, 162281, 296599, 394111, 842639, 1692359, 2076193, 2758777, 11846513, 28770103, 201390721]

約数ペア:

[(1, 201390721), (7, 28770103), (17, 11846513), (73, 2758777), (97, 2076193), (119, 1692359), (239, 842639), (511, 394111), (679, 296599), (1241, 162281), (1649, 122129), (1673, 120377), (4063, 49567), (7081, 28441), (8687, 23183), (11543, 17447)]