66789639

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 115315200

約数和(自身を除く): 48525561

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 139, 203, 261, 263, 417, 609, 789, 973, 1251, 1827, 1841, 2367, 2919, 4031, 5523, 7627, 8757, 12093, 16569, 22881, 28217, 36279, 36557, 53389, 68643, 84651, 109671, 160167, 253953, 255899, 329013, 480501, 767697, 1060153, 2303091, 3180459, 7421071, 9541377, 22263213, 66789639]

約数ペア:

[(1, 66789639), (3, 22263213), (7, 9541377), (9, 7421071), (21, 3180459), (29, 2303091), (63, 1060153), (87, 767697), (139, 480501), (203, 329013), (261, 255899), (263, 253953), (417, 160167), (609, 109671), (789, 84651), (973, 68643), (1251, 53389), (1827, 36557), (1841, 36279), (2367, 28217), (2919, 22881), (4031, 16569), (5523, 12093), (7627, 8757)]