19891284

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{5507}}^1$

素因数の和:5564

約数の個数: 48

約数和(自身を含む): 54286848

約数和(自身を除く): 34395564

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 43, 84, 86, 129, 172, 258, 301, 516, 602, 903, 1204, 1806, 3612, 5507, 11014, 16521, 22028, 33042, 38549, 66084, 77098, 115647, 154196, 231294, 236801, 462588, 473602, 710403, 947204, 1420806, 1657607, 2841612, 3315214, 4972821, 6630428, 9945642, 19891284]

約数ペア:

[(1, 19891284), (2, 9945642), (3, 6630428), (4, 4972821), (6, 3315214), (7, 2841612), (12, 1657607), (14, 1420806), (21, 947204), (28, 710403), (42, 473602), (43, 462588), (84, 236801), (86, 231294), (129, 154196), (172, 115647), (258, 77098), (301, 66084), (516, 38549), (602, 33042), (903, 22028), (1204, 16521), (1806, 11014), (3612, 5507)]