17988488

素因数分解:

$2^3\times 7^2\times {\mathrm{109}}^1\times {\mathrm{421}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 39689100

約数和(自身を除く): 21700612

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 109, 196, 218, 392, 421, 436, 763, 842, 872, 1526, 1684, 2947, 3052, 3368, 5341, 5894, 6104, 10682, 11788, 20629, 21364, 23576, 41258, 42728, 45889, 82516, 91778, 165032, 183556, 321223, 367112, 642446, 1284892, 2248561, 2569784, 4497122, 8994244, 17988488]

約数ペア:

[(1, 17988488), (2, 8994244), (4, 4497122), (7, 2569784), (8, 2248561), (14, 1284892), (28, 642446), (49, 367112), (56, 321223), (98, 183556), (109, 165032), (196, 91778), (218, 82516), (392, 45889), (421, 42728), (436, 41258), (763, 23576), (842, 21364), (872, 20629), (1526, 11788), (1684, 10682), (2947, 6104), (3052, 5894), (3368, 5341)]