17851887

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:157

約数の個数: 64

約数和(自身を含む): 31104000

約数和(自身を除く): 13252113

約数列:

[1, 3, 9, 17, 19, 23, 27, 51, 57, 69, 89, 153, 171, 207, 267, 323, 391, 437, 459, 513, 621, 801, 969, 1173, 1311, 1513, 1691, 2047, 2403, 2907, 3519, 3933, 4539, 5073, 6141, 7429, 8721, 10557, 11799, 13617, 15219, 18423, 22287, 28747, 34799, 38893, 40851, 45657, 55269, 66861, 86241, 104397, 116679, 200583, 258723, 313191, 350037, 661181, 776169, 939573, 1050111, 1983543, 5950629, 17851887]

約数ペア:

[(1, 17851887), (3, 5950629), (9, 1983543), (17, 1050111), (19, 939573), (23, 776169), (27, 661181), (51, 350037), (57, 313191), (69, 258723), (89, 200583), (153, 116679), (171, 104397), (207, 86241), (267, 66861), (323, 55269), (391, 45657), (437, 40851), (459, 38893), (513, 34799), (621, 28747), (801, 22287), (969, 18423), (1173, 15219), (1311, 13617), (1513, 11799), (1691, 10557), (2047, 8721), (2403, 7429), (2907, 6141), (3519, 5073), (3933, 4539)]