19940872

素因数分解:

$2^3\times 7^1\times {\mathrm{97}}^1\times {\mathrm{3671}}^1$

素因数の和:3781

約数の個数: 32

約数和(自身を含む): 43182720

約数和(自身を除く): 23241848

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 97, 194, 388, 679, 776, 1358, 2716, 3671, 5432, 7342, 14684, 25697, 29368, 51394, 102788, 205576, 356087, 712174, 1424348, 2492609, 2848696, 4985218, 9970436, 19940872]

約数ペア:

[(1, 19940872), (2, 9970436), (4, 4985218), (7, 2848696), (8, 2492609), (14, 1424348), (28, 712174), (56, 356087), (97, 205576), (194, 102788), (388, 51394), (679, 29368), (776, 25697), (1358, 14684), (2716, 7342), (3671, 5432)]