1972593

素因数分解:

$3^4\times 7^3\times {\mathrm{71}}^1$

素因数の和:104

約数の個数: 40

約数和(自身を含む): 3484800

約数和(自身を除く): 1512207

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 71, 81, 147, 189, 213, 343, 441, 497, 567, 639, 1029, 1323, 1491, 1917, 3087, 3479, 3969, 4473, 5751, 9261, 10437, 13419, 24353, 27783, 31311, 40257, 73059, 93933, 219177, 281799, 657531, 1972593]

約数ペア:

[(1, 1972593), (3, 657531), (7, 281799), (9, 219177), (21, 93933), (27, 73059), (49, 40257), (63, 31311), (71, 27783), (81, 24353), (147, 13419), (189, 10437), (213, 9261), (343, 5751), (441, 4473), (497, 3969), (567, 3479), (639, 3087), (1029, 1917), (1323, 1491)]