64737729

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 111331584

約数和(自身を除く): 46593855

約数列:

[1, 3, 7, 9, 21, 41, 63, 71, 123, 213, 287, 353, 369, 497, 639, 861, 1059, 1491, 2471, 2583, 2911, 3177, 4473, 7413, 8733, 14473, 20377, 22239, 25063, 26199, 43419, 61131, 75189, 101311, 130257, 175441, 183393, 225567, 303933, 526323, 911799, 1027583, 1578969, 3082749, 7193081, 9248247, 21579243, 64737729]

約数ペア:

[(1, 64737729), (3, 21579243), (7, 9248247), (9, 7193081), (21, 3082749), (41, 1578969), (63, 1027583), (71, 911799), (123, 526323), (213, 303933), (287, 225567), (353, 183393), (369, 175441), (497, 130257), (639, 101311), (861, 75189), (1059, 61131), (1491, 43419), (2471, 26199), (2583, 25063), (2911, 22239), (3177, 20377), (4473, 14473), (7413, 8733)]