19738845

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{281}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 39416832

約数和(自身を除く): 19677987

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 223, 281, 315, 669, 843, 1115, 1405, 1561, 1967, 2007, 2529, 3345, 4215, 4683, 5901, 7805, 9835, 10035, 12645, 14049, 17703, 23415, 29505, 62663, 70245, 88515, 187989, 313315, 438641, 563967, 939945, 1315923, 2193205, 2819835, 3947769, 6579615, 19738845]

約数ペア:

[(1, 19738845), (3, 6579615), (5, 3947769), (7, 2819835), (9, 2193205), (15, 1315923), (21, 939945), (35, 563967), (45, 438641), (63, 313315), (105, 187989), (223, 88515), (281, 70245), (315, 62663), (669, 29505), (843, 23415), (1115, 17703), (1405, 14049), (1561, 12645), (1967, 10035), (2007, 9835), (2529, 7805), (3345, 5901), (4215, 4683)]