19361008

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{263}}^1$

素因数の和:421

約数の個数: 40

約数和(自身を含む): 38890368

約数和(自身を除く): 19529360

約数列:

[1, 2, 4, 8, 16, 43, 86, 107, 172, 214, 263, 344, 428, 526, 688, 856, 1052, 1712, 2104, 4208, 4601, 9202, 11309, 18404, 22618, 28141, 36808, 45236, 56282, 73616, 90472, 112564, 180944, 225128, 450256, 1210063, 2420126, 4840252, 9680504, 19361008]

約数ペア:

[(1, 19361008), (2, 9680504), (4, 4840252), (8, 2420126), (16, 1210063), (43, 450256), (86, 225128), (107, 180944), (172, 112564), (214, 90472), (263, 73616), (344, 56282), (428, 45236), (526, 36808), (688, 28141), (856, 22618), (1052, 18404), (1712, 11309), (2104, 9202), (4208, 4601)]