19587789

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 33022080

約数和(自身を除く): 13434291

約数列:

[1, 3, 9, 13, 23, 29, 39, 69, 87, 117, 207, 251, 261, 299, 377, 667, 753, 897, 1131, 2001, 2259, 2691, 3263, 3393, 5773, 6003, 7279, 8671, 9789, 17319, 21837, 26013, 29367, 51957, 65511, 75049, 78039, 94627, 167417, 225147, 283881, 502251, 675441, 851643, 1506753, 2176421, 6529263, 19587789]

約数ペア:

[(1, 19587789), (3, 6529263), (9, 2176421), (13, 1506753), (23, 851643), (29, 675441), (39, 502251), (69, 283881), (87, 225147), (117, 167417), (207, 94627), (251, 78039), (261, 75049), (299, 65511), (377, 51957), (667, 29367), (753, 26013), (897, 21837), (1131, 17319), (2001, 9789), (2259, 8671), (2691, 7279), (3263, 6003), (3393, 5773)]