18917508

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{311}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 45811584

約数和(自身を除く): 26894076

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 111, 137, 148, 222, 274, 311, 411, 444, 548, 622, 822, 933, 1244, 1644, 1866, 3732, 5069, 10138, 11507, 15207, 20276, 23014, 30414, 34521, 42607, 46028, 60828, 69042, 85214, 127821, 138084, 170428, 255642, 511284, 1576459, 3152918, 4729377, 6305836, 9458754, 18917508]

約数ペア:

[(1, 18917508), (2, 9458754), (3, 6305836), (4, 4729377), (6, 3152918), (12, 1576459), (37, 511284), (74, 255642), (111, 170428), (137, 138084), (148, 127821), (222, 85214), (274, 69042), (311, 60828), (411, 46028), (444, 42607), (548, 34521), (622, 30414), (822, 23014), (933, 20276), (1244, 15207), (1644, 11507), (1866, 10138), (3732, 5069)]