81538443

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4007}}^1$

素因数の和:4056

約数の個数: 48

約数和(自身を含む): 150059520

約数和(自身を除く): 68521077

約数列:

[1, 3, 7, 9, 17, 19, 21, 51, 57, 63, 119, 133, 153, 171, 323, 357, 399, 969, 1071, 1197, 2261, 2907, 4007, 6783, 12021, 20349, 28049, 36063, 68119, 76133, 84147, 204357, 228399, 252441, 476833, 532931, 613071, 685197, 1294261, 1430499, 1598793, 3882783, 4291497, 4796379, 9059827, 11648349, 27179481, 81538443]

約数ペア:

[(1, 81538443), (3, 27179481), (7, 11648349), (9, 9059827), (17, 4796379), (19, 4291497), (21, 3882783), (51, 1598793), (57, 1430499), (63, 1294261), (119, 685197), (133, 613071), (153, 532931), (171, 476833), (323, 252441), (357, 228399), (399, 204357), (969, 84147), (1071, 76133), (1197, 68119), (2261, 36063), (2907, 28049), (4007, 20349), (6783, 12021)]