19789564

素因数分解:

$2^2\times {\mathrm{17}}^3\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:127

約数の個数: 48

約数和(自身を含む): 39463200

約数和(自身を除く): 19673636

約数列:

[1, 2, 4, 17, 19, 34, 38, 53, 68, 76, 106, 212, 289, 323, 578, 646, 901, 1007, 1156, 1292, 1802, 2014, 3604, 4028, 4913, 5491, 9826, 10982, 15317, 17119, 19652, 21964, 30634, 34238, 61268, 68476, 93347, 186694, 260389, 291023, 373388, 520778, 582046, 1041556, 1164092, 4947391, 9894782, 19789564]

約数ペア:

[(1, 19789564), (2, 9894782), (4, 4947391), (17, 1164092), (19, 1041556), (34, 582046), (38, 520778), (53, 373388), (68, 291023), (76, 260389), (106, 186694), (212, 93347), (289, 68476), (323, 61268), (578, 34238), (646, 30634), (901, 21964), (1007, 19652), (1156, 17119), (1292, 15317), (1802, 10982), (2014, 9826), (3604, 5491), (4028, 4913)]