16972865

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^2$

素因数の和:178

約数の個数: 36

約数和(自身を含む): 25869564

約数和(自身を除く): 8896699

約数列:

[1, 5, 7, 13, 35, 49, 65, 73, 91, 245, 365, 455, 511, 637, 949, 2555, 3185, 3577, 4745, 5329, 6643, 17885, 26645, 33215, 37303, 46501, 69277, 186515, 232505, 261121, 346385, 484939, 1305605, 2424695, 3394573, 16972865]

約数ペア:

[(1, 16972865), (5, 3394573), (7, 2424695), (13, 1305605), (35, 484939), (49, 346385), (65, 261121), (73, 232505), (91, 186515), (245, 69277), (365, 46501), (455, 37303), (511, 33215), (637, 26645), (949, 17885), (2555, 6643), (3185, 5329), (3577, 4745)]