17940897

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 29877120

約数和(自身を除く): 11936223

約数列:

[1, 3, 9, 13, 23, 39, 59, 69, 113, 117, 177, 207, 299, 339, 531, 767, 897, 1017, 1357, 1469, 2301, 2599, 2691, 4071, 4407, 6667, 6903, 7797, 12213, 13221, 17641, 20001, 23391, 33787, 52923, 60003, 86671, 101361, 153341, 158769, 260013, 304083, 460023, 780039, 1380069, 1993433, 5980299, 17940897]

約数ペア:

[(1, 17940897), (3, 5980299), (9, 1993433), (13, 1380069), (23, 780039), (39, 460023), (59, 304083), (69, 260013), (113, 158769), (117, 153341), (177, 101361), (207, 86671), (299, 60003), (339, 52923), (531, 33787), (767, 23391), (897, 20001), (1017, 17641), (1357, 13221), (1469, 12213), (2301, 7797), (2599, 6903), (2691, 6667), (4071, 4407)]