9138889179

素因数分解:

$3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{681041}}^1$

素因数の和:681128

約数の個数: 32

約数和(自身を含む): 15691207680

約数和(自身を除く): 6552318501

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 189, 213, 497, 639, 1491, 1917, 4473, 13419, 681041, 2043123, 4767287, 6129369, 14301861, 18388107, 42905583, 48353911, 128716749, 145061733, 338477377, 435185199, 1015432131, 1305555597, 3046296393, 9138889179]

約数ペア:

[(1, 9138889179), (3, 3046296393), (7, 1305555597), (9, 1015432131), (21, 435185199), (27, 338477377), (63, 145061733), (71, 128716749), (189, 48353911), (213, 42905583), (497, 18388107), (639, 14301861), (1491, 6129369), (1917, 4767287), (4473, 2043123), (13419, 681041)]