18914175

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{4003}}^1$

素因数の和:4029

約数の個数: 48

約数和(自身を含む): 39719680

約数和(自身を除く): 20805505

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 135, 175, 189, 225, 315, 525, 675, 945, 1575, 4003, 4725, 12009, 20015, 28021, 36027, 60045, 84063, 100075, 108081, 140105, 180135, 252189, 300225, 420315, 540405, 700525, 756567, 900675, 1260945, 2101575, 2702025, 3782835, 6304725, 18914175]

約数ペア:

[(1, 18914175), (3, 6304725), (5, 3782835), (7, 2702025), (9, 2101575), (15, 1260945), (21, 900675), (25, 756567), (27, 700525), (35, 540405), (45, 420315), (63, 300225), (75, 252189), (105, 180135), (135, 140105), (175, 108081), (189, 100075), (225, 84063), (315, 60045), (525, 36027), (675, 28021), (945, 20015), (1575, 12009), (4003, 4725)]