18935595

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1279}}^1$

素因数の和:1344

約数の個数: 48

約数和(自身を含む): 38338560

約数和(自身を除く): 19402965

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 47, 63, 105, 141, 235, 315, 329, 423, 705, 987, 1279, 1645, 2115, 2961, 3837, 4935, 6395, 8953, 11511, 14805, 19185, 26859, 44765, 57555, 60113, 80577, 134295, 180339, 300565, 402885, 420791, 541017, 901695, 1262373, 2103955, 2705085, 3787119, 6311865, 18935595]

約数ペア:

[(1, 18935595), (3, 6311865), (5, 3787119), (7, 2705085), (9, 2103955), (15, 1262373), (21, 901695), (35, 541017), (45, 420791), (47, 402885), (63, 300565), (105, 180339), (141, 134295), (235, 80577), (315, 60113), (329, 57555), (423, 44765), (705, 26859), (987, 19185), (1279, 14805), (1645, 11511), (2115, 8953), (2961, 6395), (3837, 4935)]