19121805

素因数分解:

$3^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{719}}^1$

素因数の和:930

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 15092595

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 197, 591, 719, 985, 1773, 2157, 2955, 3595, 5319, 6471, 8865, 10785, 19413, 26595, 32355, 97065, 141643, 424929, 708215, 1274787, 2124645, 3824361, 6373935, 19121805]

約数ペア:

[(1, 19121805), (3, 6373935), (5, 3824361), (9, 2124645), (15, 1274787), (27, 708215), (45, 424929), (135, 141643), (197, 97065), (591, 32355), (719, 26595), (985, 19413), (1773, 10785), (2157, 8865), (2955, 6471), (3595, 5319)]