18512631

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{523}}^1$

素因数の和:577

約数の個数: 40

約数和(自身を含む): 30433920

約数和(自身を除く): 11921289

約数列:

[1, 3, 9, 19, 23, 27, 57, 69, 81, 171, 207, 437, 513, 523, 621, 1311, 1539, 1569, 1863, 3933, 4707, 9937, 11799, 12029, 14121, 29811, 35397, 36087, 42363, 89433, 108261, 228551, 268299, 324783, 685653, 804897, 974349, 2056959, 6170877, 18512631]

約数ペア:

[(1, 18512631), (3, 6170877), (9, 2056959), (19, 974349), (23, 804897), (27, 685653), (57, 324783), (69, 268299), (81, 228551), (171, 108261), (207, 89433), (437, 42363), (513, 36087), (523, 35397), (621, 29811), (1311, 14121), (1539, 12029), (1569, 11799), (1863, 9937), (3933, 4707)]