19105515

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2969}}^1$

素因数の和:3004

約数の個数: 48

約数和(自身を含む): 38918880

約数和(自身を除く): 19813365

約数列:

[1, 3, 5, 9, 11, 13, 15, 33, 39, 45, 55, 65, 99, 117, 143, 165, 195, 429, 495, 585, 715, 1287, 2145, 2969, 6435, 8907, 14845, 26721, 32659, 38597, 44535, 97977, 115791, 133605, 163295, 192985, 293931, 347373, 424567, 489885, 578955, 1273701, 1469655, 1736865, 2122835, 3821103, 6368505, 19105515]

約数ペア:

[(1, 19105515), (3, 6368505), (5, 3821103), (9, 2122835), (11, 1736865), (13, 1469655), (15, 1273701), (33, 578955), (39, 489885), (45, 424567), (55, 347373), (65, 293931), (99, 192985), (117, 163295), (143, 133605), (165, 115791), (195, 97977), (429, 44535), (495, 38597), (585, 32659), (715, 26721), (1287, 14845), (2145, 8907), (2969, 6435)]