19815423

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 29164800

約数和(自身を除く): 9349377

約数列:

[1, 3, 19, 41, 57, 61, 123, 139, 183, 417, 779, 1159, 2337, 2501, 2641, 3477, 5699, 7503, 7923, 8479, 17097, 25437, 47519, 108281, 142557, 161101, 324843, 347639, 483303, 1042917, 6605141, 19815423]

約数ペア:

[(1, 19815423), (3, 6605141), (19, 1042917), (41, 483303), (57, 347639), (61, 324843), (123, 161101), (139, 142557), (183, 108281), (417, 47519), (779, 25437), (1159, 17097), (2337, 8479), (2501, 7923), (2641, 7503), (3477, 5699)]