19869345

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1367}}^1$

素因数の和:1414

約数の個数: 48

約数和(自身を含む): 38413440

約数和(自身を除く): 18544095

約数列:

[1, 3, 5, 9, 15, 17, 19, 45, 51, 57, 85, 95, 153, 171, 255, 285, 323, 765, 855, 969, 1367, 1615, 2907, 4101, 4845, 6835, 12303, 14535, 20505, 23239, 25973, 61515, 69717, 77919, 116195, 129865, 209151, 233757, 348585, 389595, 441541, 1045755, 1168785, 1324623, 2207705, 3973869, 6623115, 19869345]

約数ペア:

[(1, 19869345), (3, 6623115), (5, 3973869), (9, 2207705), (15, 1324623), (17, 1168785), (19, 1045755), (45, 441541), (51, 389595), (57, 348585), (85, 233757), (95, 209151), (153, 129865), (171, 116195), (255, 77919), (285, 69717), (323, 61515), (765, 25973), (855, 23239), (969, 20505), (1367, 14535), (1615, 12303), (2907, 6835), (4101, 4845)]