16984575

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:201

約数の個数: 72

約数和(自身を含む): 33368400

約数和(自身を除く): 16383825

約数列:

[1, 3, 5, 9, 15, 19, 25, 29, 45, 57, 75, 87, 95, 137, 145, 171, 225, 261, 285, 411, 435, 475, 551, 685, 725, 855, 1233, 1305, 1425, 1653, 2055, 2175, 2603, 2755, 3425, 3973, 4275, 4959, 6165, 6525, 7809, 8265, 10275, 11919, 13015, 13775, 19865, 23427, 24795, 30825, 35757, 39045, 41325, 59595, 65075, 75487, 99325, 117135, 123975, 178785, 195225, 226461, 297975, 377435, 585675, 679383, 893925, 1132305, 1887175, 3396915, 5661525, 16984575]

約数ペア:

[(1, 16984575), (3, 5661525), (5, 3396915), (9, 1887175), (15, 1132305), (19, 893925), (25, 679383), (29, 585675), (45, 377435), (57, 297975), (75, 226461), (87, 195225), (95, 178785), (137, 123975), (145, 117135), (171, 99325), (225, 75487), (261, 65075), (285, 59595), (411, 41325), (435, 39045), (475, 35757), (551, 30825), (685, 24795), (725, 23427), (855, 19865), (1233, 13775), (1305, 13015), (1425, 11919), (1653, 10275), (2055, 8265), (2175, 7809), (2603, 6525), (2755, 6165), (3425, 4959), (3973, 4275)]