20639638593

素因数分解:

$3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1582673}}^1$

素因数の和:1582715

約数の個数: 40

約数和(自身を含む): 36768682368

約数和(自身を除く): 16129043775

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 207, 483, 567, 621, 1449, 1863, 4347, 13041, 1582673, 4748019, 11078711, 14244057, 33236133, 36401479, 42732171, 99708399, 109204437, 128196513, 254810353, 299125197, 327613311, 764431059, 897375591, 982839933, 2293293177, 2948519799, 6879879531, 20639638593]

約数ペア:

[(1, 20639638593), (3, 6879879531), (7, 2948519799), (9, 2293293177), (21, 982839933), (23, 897375591), (27, 764431059), (63, 327613311), (69, 299125197), (81, 254810353), (161, 128196513), (189, 109204437), (207, 99708399), (483, 42732171), (567, 36401479), (621, 33236133), (1449, 14244057), (1863, 11078711), (4347, 4748019), (13041, 1582673)]