2020821831

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{344909}}^1$

素因数の和:344956

約数の個数: 32

約数和(自身を含む): 3531878400

約数和(自身を除く): 1511056569

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 93, 189, 217, 279, 651, 837, 1953, 5859, 344909, 1034727, 2414363, 3104181, 7243089, 9312543, 10692179, 21729267, 32076537, 65187801, 74845253, 96229611, 224535759, 288688833, 673607277, 2020821831]

約数ペア:

[(1, 2020821831), (3, 673607277), (7, 288688833), (9, 224535759), (21, 96229611), (27, 74845253), (31, 65187801), (63, 32076537), (93, 21729267), (189, 10692179), (217, 9312543), (279, 7243089), (651, 3104181), (837, 2414363), (1953, 1034727), (5859, 344909)]