281295273

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{3323}}^1$

素因数の和:3501

約数の個数: 32

約数和(自身を含む): 446745600

約数和(自身を除く): 165450327

約数列:

[1, 3, 7, 21, 29, 87, 139, 203, 417, 609, 973, 2919, 3323, 4031, 9969, 12093, 23261, 28217, 69783, 84651, 96367, 289101, 461897, 674569, 1385691, 2023707, 3233279, 9699837, 13395013, 40185039, 93765091, 281295273]

約数ペア:

[(1, 281295273), (3, 93765091), (7, 40185039), (21, 13395013), (29, 9699837), (87, 3233279), (139, 2023707), (203, 1385691), (417, 674569), (609, 461897), (973, 289101), (2919, 96367), (3323, 84651), (4031, 69783), (9969, 28217), (12093, 23261)]