16880745

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{193}}^1$

素因数の和:239

約数の個数: 64

約数和(自身を含む): 33523200

約数和(自身を除く): 16642455

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 49, 51, 85, 105, 119, 147, 193, 245, 255, 343, 357, 579, 595, 735, 833, 965, 1029, 1351, 1715, 1785, 2499, 2895, 3281, 4053, 4165, 5145, 5831, 6755, 9457, 9843, 12495, 16405, 17493, 20265, 22967, 28371, 29155, 47285, 49215, 66199, 68901, 87465, 114835, 141855, 160769, 198597, 330995, 344505, 482307, 803845, 992985, 1125383, 2411535, 3376149, 5626915, 16880745]

約数ペア:

[(1, 16880745), (3, 5626915), (5, 3376149), (7, 2411535), (15, 1125383), (17, 992985), (21, 803845), (35, 482307), (49, 344505), (51, 330995), (85, 198597), (105, 160769), (119, 141855), (147, 114835), (193, 87465), (245, 68901), (255, 66199), (343, 49215), (357, 47285), (579, 29155), (595, 28371), (735, 22967), (833, 20265), (965, 17493), (1029, 16405), (1351, 12495), (1715, 9843), (1785, 9457), (2499, 6755), (2895, 5831), (3281, 5145), (4053, 4165)]