165721689

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1487}}^1$

素因数の和:1590

約数の個数: 48

約数和(自身を含む): 287838720

約数和(自身を除く): 122117031

約数列:

[1, 3, 7, 9, 21, 29, 61, 63, 87, 183, 203, 261, 427, 549, 609, 1281, 1487, 1769, 1827, 3843, 4461, 5307, 10409, 12383, 13383, 15921, 31227, 37149, 43123, 90707, 93681, 111447, 129369, 272121, 301861, 388107, 634949, 816363, 905583, 1904847, 2630503, 2716749, 5714541, 7891509, 18413521, 23674527, 55240563, 165721689]

約数ペア:

[(1, 165721689), (3, 55240563), (7, 23674527), (9, 18413521), (21, 7891509), (29, 5714541), (61, 2716749), (63, 2630503), (87, 1904847), (183, 905583), (203, 816363), (261, 634949), (427, 388107), (549, 301861), (609, 272121), (1281, 129369), (1487, 111447), (1769, 93681), (1827, 90707), (3843, 43123), (4461, 37149), (5307, 31227), (10409, 15921), (12383, 13383)]