19487565

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 35521200

約数和(自身を除く): 16033635

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 109, 137, 145, 261, 327, 411, 435, 545, 685, 981, 1233, 1305, 1635, 2055, 3161, 3973, 4905, 6165, 9483, 11919, 14933, 15805, 19865, 28449, 35757, 44799, 47415, 59595, 74665, 134397, 142245, 178785, 223995, 433057, 671985, 1299171, 2165285, 3897513, 6495855, 19487565]

約数ペア:

[(1, 19487565), (3, 6495855), (5, 3897513), (9, 2165285), (15, 1299171), (29, 671985), (45, 433057), (87, 223995), (109, 178785), (137, 142245), (145, 134397), (261, 74665), (327, 59595), (411, 47415), (435, 44799), (545, 35757), (685, 28449), (981, 19865), (1233, 15805), (1305, 14933), (1635, 11919), (2055, 9483), (3161, 6165), (3973, 4905)]