19910892

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{821}}^1$

素因数の和:918

約数の個数: 48

約数和(自身を含む): 48609792

約数和(自身を除く): 28698900

約数列:

[1, 2, 3, 4, 6, 12, 43, 47, 86, 94, 129, 141, 172, 188, 258, 282, 516, 564, 821, 1642, 2021, 2463, 3284, 4042, 4926, 6063, 8084, 9852, 12126, 24252, 35303, 38587, 70606, 77174, 105909, 115761, 141212, 154348, 211818, 231522, 423636, 463044, 1659241, 3318482, 4977723, 6636964, 9955446, 19910892]

約数ペア:

[(1, 19910892), (2, 9955446), (3, 6636964), (4, 4977723), (6, 3318482), (12, 1659241), (43, 463044), (47, 423636), (86, 231522), (94, 211818), (129, 154348), (141, 141212), (172, 115761), (188, 105909), (258, 77174), (282, 70606), (516, 38587), (564, 35303), (821, 24252), (1642, 12126), (2021, 9852), (2463, 8084), (3284, 6063), (4042, 4926)]