19121319

素因数分解:

$3^3\times 7^2\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:269

約数の個数: 48

約数和(自身を含む): 33516000

約数和(自身を除く): 14394681

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 97, 147, 149, 189, 291, 441, 447, 679, 873, 1043, 1323, 1341, 2037, 2619, 3129, 4023, 4753, 6111, 7301, 9387, 14259, 14453, 18333, 21903, 28161, 42777, 43359, 65709, 101171, 128331, 130077, 197127, 303513, 390231, 708197, 910539, 2124591, 2731617, 6373773, 19121319]

約数ペア:

[(1, 19121319), (3, 6373773), (7, 2731617), (9, 2124591), (21, 910539), (27, 708197), (49, 390231), (63, 303513), (97, 197127), (147, 130077), (149, 128331), (189, 101171), (291, 65709), (441, 43359), (447, 42777), (679, 28161), (873, 21903), (1043, 18333), (1323, 14453), (1341, 14259), (2037, 9387), (2619, 7301), (3129, 6111), (4023, 4753)]