17901548

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 37330944

約数和(自身を除く): 19429396

約数列:

[1, 2, 4, 7, 14, 28, 47, 61, 94, 122, 188, 223, 244, 329, 427, 446, 658, 854, 892, 1316, 1561, 1708, 2867, 3122, 5734, 6244, 10481, 11468, 13603, 20069, 20962, 27206, 40138, 41924, 54412, 73367, 80276, 95221, 146734, 190442, 293468, 380884, 639341, 1278682, 2557364, 4475387, 8950774, 17901548]

約数ペア:

[(1, 17901548), (2, 8950774), (4, 4475387), (7, 2557364), (14, 1278682), (28, 639341), (47, 380884), (61, 293468), (94, 190442), (122, 146734), (188, 95221), (223, 80276), (244, 73367), (329, 54412), (427, 41924), (446, 40138), (658, 27206), (854, 20962), (892, 20069), (1316, 13603), (1561, 11468), (1708, 10481), (2867, 6244), (3122, 5734)]